Book overview Ali Hazelwood

Love, Theoretically: Complete Guide to Ali Hazelwood's STEM Romance

⚠️ Spoiler Warning: This guide contains full spoilers for the plot, character arcs, and ending of Love, Theoretically. If you haven't finished the book, proceed with caution.

Quick Facts

Item Detail
Publication Year 2023
Genre STEMinist romantic comedy
Setting Boston, Massachusetts; MIT and Harvard campuses; various private residences
Narrator Third-person limited, focalized through Elsie Hannaway
Main Characters Elsie Hannaway, Jack Smith-Turner, Greg Smith-Turner, Cece, Dr. Christophe Laurendeau, Georgina Sepulveda
Key Themes People-pleasing vs. authenticity, academic rivalry, fake dating, family obligation, vulnerability and trust
Symbols Go board game, insulin pump, Polaroid photograph, cherry Jell‑O

Short Summary

Theoretical physicist Elsie Hannaway juggles low‑paying adjunct teaching and a secret side gig as a fake girlfriend through the Faux app. For six months she has pretended to date Greg Smith‑Turner, never meeting his older brother Jack. When she interviews for a tenure‑track position at MIT, the hiring committee is chaired by none other than Jack—revealed to be experimental physicist Jonathan Smith‑Turner, the man who humiliated Elsie’s mentor and who now holds her career in his hands. As Elsie navigates a bad‑faith interview, family pressure, and her own people‑pleasing habits, she and Jack clash, then slowly uncover the lies they have told each other and themselves. Their fake‑dating charade unravels into genuine connection, forcing Elsie to choose authenticity over performance and to trust Jack with her deepest vulnerabilities, including her Type 1 diabetes and the truth about her past.

Full Summary

Love, Theoretically opens on a humiliating note: Elsie is trapped in a bathroom stall with Jack Smith, her fake boyfriend’s older brother, who lifts her by the waist to keep her upright. The scene flashes back to twenty‑four hours earlier. Elsie attends Greg’s grandmother Millicent’s ninetieth birthday, where she meets Jack for the first time. He is suspicious of her after a diabetic episode she hid at a previous gathering. They play Go and end in a draw, and a Polaroid is taken. On the drive home, Greg mentions a silent meditation retreat called Woodacre, and Elsie hopes never to see Jack again.

The next day, Elsie prepares for her MIT interview with roommate Cece. Department chair Monica Salt reveals the hiring is politicized: theorists (Monica) versus experimentalists led by Jonathan Smith‑Turner, who favors another candidate. Monica recounts Smith‑Turner’s infamous hoax paper that humiliated theoretical physics and led to the censure of Elsie’s former PhD advisor, Dr. Christophe Laurendeau. That evening, at the interview dinner, Elsie discovers Jonathan Smith‑Turner is Jack. A flashback shows Greg accidentally misled her about Jack’s profession. Jack confronts her about lying to Greg, then hides her in a bathroom when colleagues enter. Elsie overhears sexist remarks and learns Jack hates theorists. She declares war, admitting she has despised him since age twelve.

At her teaching demonstration, Jack evaluates her. Elsie wins over a hostile class with humor. In a one‑on‑one interview, Jack reveals he wrote the hoax at seventeen to expose peer‑review flaws, not as a prank. He also reads all her work and directly describes her pattern of molding herself to please others—a pattern he calls APE (Adaptive Psychological Empathy). Jack gives her a tour; Elsie’s insulin pump malfunctions, causing a hypoglycemic episode. Jack steals a soda and learns she has Type 1 diabetes. He warns he will tell Greg about her lies but then says it would be “a waste” for Elsie to be someone else.

Elsie delivers her research talk; Jack’s colleague Volkov suggests using her theoretical model. At a reception, Elsie encounters Austin Salt, a former Faux client who once offered her money for sex. Austin drunkenly calls her a hooker in front of Jack; Jack defends her and threatens Austin. After picking up a sedated Greg from the dentist, Elsie hears Jack’s guilt over failing to understand Greg’s asexuality. She finally tells Jack the truth: she was paid to pose as Greg’s girlfriend. Jack confesses his long‑standing attraction and complicated feelings.

Days later, Elsie learns she did not get the MIT job. Losing it, she runs. Jack catches her and reveals the search was a sham: Volkov’s team never intended to hire her. He admits he recused himself from the vote because of his attraction to her. They end up at his apartment, where she finds the Polaroid in his nightstand. They cuddle and she falls asleep safe.

Elsie meets Jack’s grandmother Millicent, who reveals that Jack’s mother Grethe, a theorist, died when he was one, and he discovered the truth at age nine—explaining his hatred of lies. On the drive home, Elsie agrees to a date, and Jack insists on complete honesty. They go on a date to a party where Elsie bonds with Jack’s friends. She reveals her traumatic past: in college she was in a fake relationship with roommate J.J., who discarded her when his ex returned. Jack says they will not have sex yet, wanting to ensure she is not sacrificing her own needs.

Elsie meets Georgina Sepulveda, the candidate who got the MIT job. George offers Elsie a postdoc position at Harvard, independent of Jack. Elsie hesitates, needing to consult Dr. Laurendeau. George reacts uneasily to that name. Elsie dresses for a date with Jack but gets a call about her brothers’ fight. Jack cancels dinner, takes her to his apartment, and they engage in intimate acts without intercourse. Elsie has her first orgasm with a partner. Overwhelmed, she laughs and cries. Jack asks her to be gentle with him.

Elsie spends more nights at Jack’s. She lets him watch her change her insulin pod as an act of trust. Jack shares that his mother was forced out of her PhD program by sexism and died young. Elsie reflects that Jack has become what she wants most, even above the MIT job.

Dr. Laurendeau emails Elsie, setting a meeting. She attends a party at George’s; she wins a Blitz Go tournament against Jack. Overhearing a confrontation about Jack dating a theorist, Elsie learns Jack’s Annals article targeted Dr. Laurendeau, who ruined Jack’s mother’s career. Feeling deceived, Elsie asks Jack to leave. She visits Dr. Laurendeau, who objects harshly to her taking George’s postdoc. He reveals he withheld job offers from experimental physicists and confirms he ruined Grethe Turner’s career. Elsie stands up to him, declares she will make her own decisions, and leaves.

Elsie accepts George’s postdoc position, telling her the decision is her own. At home, she admits to Cece that she has been faking her love of auteur films and that Twilight is her favorite. Cece offers her real name, Celeste, and they reconcile. Cece shows Elsie Jack’s open letter in Annals of Theoretical Physics, where he recants the false claims and cites her work. Elsie runs to Jack’s institute, finds him, and tells him she accepted the job there. She confesses she hates him because she might love him and admits her fear that knowing her better will make him like her less. Jack responds with raw honesty about his obsession and desire to be with her always. Elsie says she is “almost there.”

Eight months later in the epilogue, Elsie lives with Jack and attends therapy. She plans a birthday surprise for him. She spends time with the Smith family, has a therapy session about fear of hidden deal‑breakers, and receives a Nature Physics acceptance for her paper with George. On Thursday she makes cherry Jell‑O at Cece’s old apartment. The next morning she traps Jack’s Hadron Collider model in the Jell‑O and gives him a card that reads “I’m right here. With you.” Jack is delighted, and the story ends with Elsie knowing she is loved for who she truly is.

An Author’s Note explains that the academic politics and job interview horrors are drawn from Hazelwood’s own experience, and that Jack’s bogus article is loosely based on the 1996 Sokal Hoax.

Main Characters

  • Elsie Hannaway – A theoretical physicist and adjunct professor who works as a fake girlfriend to supplement her income. She hides her people‑pleasing nature and Type 1 diabetes.
  • Jack Smith-Turner (Jonathan Smith-Turner) – The experimental physicist who heads MIT’s Physics Institute. He reveals himself as Greg’s older brother and the nemesis of Elsie’s mentor, but eventually falls for Elsie.
  • Greg Smith-Turner – Jack’s younger brother, a human resources consultant who hires Elsie as a fake girlfriend to navigate family events without disclosing his asexuality.
  • Cece (Celeste) – Elsie’s roommate and best friend, a private chef who encourages Elsie to be honest; her real name is Celeste.
  • Dr. Christophe Laurendeau – Elsie’s former PhD advisor who manipulates her career decisions and harbors a grudge against Jack for exposing his role in ousting Grethe Turner.
  • Georgina Sepulveda (George) – An experimental physicist and finalist for the MIT job who becomes a friend and offers Elsie a postdoctoral position at Harvard.

Themes

  • People‑pleasing versus authenticity – Elsie’s lifelong habit of reshaping herself to meet others’ expectations is challenged by Jack’s insistence on seeing the real her.
  • Academic rivalry and power dynamics – The feud between theoretical and experimental physicists exposes systemic sexism, mentor abuse, and corrupt departmental politics.
  • Fake dating and emotional performance – Elsie’s paid role forces her to perform intimacy, blurring into her real relationships until she abandons it for genuine connection.
  • Family obligation and chosen family – Elsie manages constant demands from her parents and brothers while finding unconditional support from Cece and the Smith family.
  • Vulnerability and trust – Jack and Elsie each learn to share their deepest secrets—diabetes, family trauma, mentorship betrayal—as a foundation for intimacy.

Symbols

  • Go board game – Elsie and Jack play Go repeatedly, using the strategy game as an arena for intellectual rivalry and a metaphor for their evolving relationship.
  • Insulin pump – Represents Elsie’s hidden vulnerability and diabetes management, which she initially keeps secret but later allows Jack to witness as an act of trust.
  • Polaroid photograph – Taken at the Smith family party, Jack keeps it in his nightstand as a tangible reminder of his feelings for Elsie.
  • Cherry Jell‑O – Elsie encases Jack’s Hadron Collider model in cherry Jell‑O as a birthday gift, transforming a childhood comfort food into a symbol of commitment and playful love.

Ending Overview

For a detailed analysis of the ending, see our ending explained page.

The story concludes eight months later with Elsie having accepted a postdoc at Harvard under Georgina Sepulveda, living with Jack, and attending therapy. She has grown in trust and authenticity. For Jack’s birthday, she traps his office Hadron Collider model in cherry Jell‑O and gives him a card affirming “I’m right here. With you.” Jack is delighted, and the novel closes with Elsie feeling secure in a love that accepts her exactly as she is.

Chapter‑by‑Chapter Breakdown

Chapter Key Events
Titles by Ali Hazelwood Front‑matter page listing author’s previous novels; no narrative action.
Prologue Elsie is trapped in a bathroom stall with Jack, who physically supports her; establishes their charged dynamic.
Chapter 1: Waves and Particles Elsie accompanies Greg to his grandmother’s birthday; plays Go with Jack; hides a diabetic episode; learns about Woodacre.
Chapter 2: Nuclear Fission Elsie prepares for MIT interview; learns about the Smith‑Turner hoax; discovers Jack is Jonathan Smith‑Turner.
Chapter 3: Chain Reaction Confrontation in the men’s room; Elsie declares war and admits she has hated Jack since age twelve.
Chapter 4: Entropy Elsie panics after telling Jack the truth; researches his publications; pressured by family to mediate brothers’ fight.
Chapter 5: Gravitational Constant Dr. Laurendeau insists Elsie withdraw her application; reveals the Smith‑Turner affair cost him grants; suggests revenge.
Chapter 6: Anode and Cathode Elsie’s teaching demonstration; Jack explains the hoax and names her pattern of people‑pleasing (APE); he offers a tour.
Chapter 7: Electrical Resistance Jack’s tour; Elsie’s insulin pump malfunctions; Jack learns about her diabetes; accuses her of erasing herself.
Chapter 8: Friction Elsie delivers research talk; Jack admits respect; Monica’s reception where Elsie recognizes Austin as a former client.
Chapter 9: Escape Velocity Austin calls Elsie a hooker; Jack defends her and threatens Austin; flashback to the first Faux date.
Chapter 10: Inertia Elsie discusses exposure risk with Cece; gets a call about Greg’s emergency dental surgery; agrees to pick him up.
Chapter 11: Centripetal Force Elsie picks up sedated Greg; Jack arrives; Elsie reveals the fake‑dating arrangement; Jack confesses his attraction.
Chapter 12: Collision (Inelastic) Elsie obsessively checks for job news; Cece confiscates phone; they see a movie; Elsie learns George signed the contract.
Chapter 13: Annihilation Elsie runs after learning she lost the job; Jack explains the bad‑faith interview; she explodes then agrees to go to his place.
Chapter 14: Center‑of‑Momentum Frame Jack explains the sham; Elsie stays overnight; finds Polaroid; they cuddle; Jack admits fantasies of caring for her.
Chapter 15: Heat Transfer Elsie wakes in Jack’s bed; Millicent reveals Jack’s mother Grethe died young; Elsie agrees to a date, promising honesty.
Chapter 16: Fundamental Forces Dr. Laurendeau dismisses Elsie’s financial needs; formal rejection call; Cece reveals Kirk’s wealth; text from Jack.
Chapter 17: Displacement Date with Jack at Sunny’s party; Elsie meets his friends; reveals past fake relationship with J.J.; Jack says they won’t have sex.
Chapter 18: Flux Greg teases Elsie about Jack; George offers a postdoc; Elsie wants to consult Dr. L.; George reacts uneasily.
Chapter 19: Impedance Elsie cancels dinner due to family drama; at Jack’s apartment they are intimate without intercourse; she has her first orgasm.
Chapter 20: Falling Bodies Elsie is dazed after the night; joins dinner at Greg’s; worries about being a burden; Jack promises love doesn’t require effortlessness.
Chapter 21: Complex Harmonic Motion Elsie wakes on Jack; they make love; she realizes she wants to stay; he calls her his entire world.
Chapter 22: Critical Mass Elsie lets Jack watch her change insulin pod; he shares his mother’s story; she reflects that Jack is what she wants most.
Chapter 23: Freezing Point Email from Dr. L.; Blitz Go tournament; Elsie learns Jack’s article targeted Dr. L. for ruining his mother’s career; asks Jack to leave.
Chapter 24: Electromagnetism Elsie confronts Dr. L., who confirms he ruined Grethe Turner’s career; she stands up to him and leaves, claiming her identity.
Chapter 25: Ductility Elsie accepts George’s postdoc; allows herself to feel anger; confesses to Cece about faking love of auteur films; Cece offers her real name.
Chapter 26: Liquid Crystals Cece shows Elsie Jack’s open letter recanting the hoax; Elsie runs to Jack, confesses she might love him and fears being known.
Epilogue Eight months later: Elsie lives with Jack, attends therapy; plans birthday surprise; receives paper acceptance; traps Hadron Collider in Jell‑O with a card.
Author’s Note Hazelwood explains the novel’s academic realism and the Sokal Hoax inspiration.

Common Questions & Answers

For a full list see our Questions and Answers page.

  1. Is Love, Theoretically a standalone novel? Yes, it is a standalone with no connection to a series, though it shares the STEM romantic comedy genre with Hazelwood’s other novels.

  2. What is the fake‑dating setup? Elsie works for the Faux app, pretending to be Greg’s girlfriend to help him manage family expectations. Greg is asexual and uses the arrangement to avoid romantic pressure.

  3. How does Elsie’s diabetes affect the plot? Her Type 1 diabetes is a central secret she hides until Jack discovers it during a hypoglycemic episode. Sharing her insulin pump management becomes a key trust‑building act.

  4. Who is the antagonist? Dr. Christophe Laurendeau, Elsie’s former PhD advisor, is the primary antagonist. He manipulates her career, withheld job opportunities, and was responsible for ruining Jack’s mother’s career.

  5. Does Jack have a redemption arc? Jack is initially seen as the villain due to the hoax, but he is shown to have acted out of a desire to expose peer‑review flaws and later publicly recants, apologizing for the harm.

  6. What is the significance of the Go board game? Go symbolizes the strategic, intellectual dance between Elsie and Jack. Their games mirror their relationship shifts from rivalry to partnership.

  7. How does the novel handle the theme of people‑pleasing? Elsie’s APE (Adaptive Psychological Empathy) is her strategy for survival. Through therapy and Jack’s insistence on authenticity, she learns to prioritize her own needs and stop performing.

  8. What is the meaning of the cherry Jell‑O gift in the epilogue? The Jell‑O is a playful, personal gesture that shows Elsie’s growth in expressing love without pretense. It transforms a childhood comfort into a symbol of commitment.

Deeper Dives