Lainey in The Summer Pact: From Party Girl to Person of Substance

Overview

Lainey is a California-based aspiring actress and one of three surviving friends bound by the Summer Pact. She presents herself as a carefree party girl—quick with a martini, a flirtatious remark, and a dramatic gesture—but beneath that surface lies a woman shaped by profound betrayal. Her father had a secret second family, and her mother died after a long illness, leaving Lainey with deep-seated beliefs that love is never worth the pain. Throughout The Summer Pact, Lainey’s arc moves from avoidance and self-destruction toward accountability, sobriety, and the willingness to be vulnerable with her friends.

Plot Role

Lainey is the first responder. When Hannah calls about catching her fiancé cheating, Lainey cancels a Los Angeles audition and flies to Atlanta without hesitation. She devises a theatrical dinner ambush to expose Grady, then later blackmails him into repaying Hannah for shared expenses. Lainey also pushes the group toward a summer trip, suggesting destinations that allow each friend to heal. She is the engine of action—impulsive, loyal, and often reckless.

Her own subplot centers on confronting her father’s other family. She travels to Dallas with Hannah and Tyson to meet her half‑sister Ashley, but the meeting ends in rejection. That failure triggers a spiral: she picks up a stranger in a bar, blacks out in Capri, and ends up in a hospital with alcohol poisoning and a fractured arm. This near‑death experience forces her to admit she has a drinking problem and to seek help.

Motivations and Traits Shown Through Actions

Lainey’s core motivation is to avoid pain. She uses alcohol to numb herself, especially when upset. She deflects serious conversations with humor or by changing the subject. She is fiercely protective of her friends—she takes charge after Hannah’s breakup and orchestrates revenge—but she also resists vulnerability. When she does let her guard down, it is often with impulsive choices, like the naked shower with Tyson. Her jealousy when Tyson dances with Amore reveals a longing for genuine connection that her usual party persona masks.

Her acting career is more than a job; it is a way to inhabit other identities and avoid her own. Yet when she reads her script aloud, she loses herself in the character, showing a serious dedication that surprises even her friends. The script, a romantic comedy titled The Pigeon Girl, symbolizes her own need to discover who she is when she stops performing.

Chronological Arc

1. Early chapters (book’s present): Lainey is at LaGuardia, drinking a martini before a flight. She drops everything to go to Hannah in Atlanta. She voices her cynical view of love, rooted in her father’s double life.

2. Dallas and the failed reunion: She insists on meeting Ashley, but when Sharon (the wife) and Ashley reject her, Lainey storms out. That night she picks up Gus at the hotel bar, a clear self‑destructive reaction.

3. Capri and the spiral: After the shower incident with Tyson, Lainey’s feelings for him grow, but she struggles to be direct. When she discovers Hannah has secretly been meeting her half‑sister Olivia, Lainey feels betrayed and storms off alone. She crashes a yacht party, drinks heavily, and falls, resulting in alcohol poisoning and injuries.

4. Hospital reckoning: Waking up with a cast and a diagnosis of acute alcohol poisoning, Lainey admits she has a troubled relationship with alcohol. She accepts she will lose the movie role. She forgives Hannah and Tyson for their secrecy, finally understanding that her drinking, not their actions, caused the crisis.

5. One year later: Lainey has completed nine months of sobriety after rehab. She is training for the Chicago Marathon with Hannah and Tyson. When Tyson proposes with a new line in the Summer Pact, she accepts, showing she has opened herself to love and commitment.

Relationships

With Hannah: Lainey is Hannah’s protector and maid of honor. She drops everything to support Hannah after Grady’s betrayal, but she also struggles with jealousy when Hannah connects with Olivia. Their bond deepens after the hospital, where they forgive each other.

With Tyson: Their relationship is the novel’s central romantic thread. Lainey and Tyson share a friendship built on inside jokes and honest confrontation. After the shower scene, Tyson holds back, wanting to be sure about their feelings. Lainey’s jealousy of Amore and her vulnerable apology for past insensitivity around Summer’s death show her growth. They end the book engaged.

With her father’s family: Lainey’s half‑sisters, Ashley and Olivia, represent the family secrets she has carried since childhood. The failed meeting with Ashley confirms her worst fears, but Olivia later offers a path to reconciliation. Lainey eventually accepts Olivia into the friend group.

With Summer: Summer’s death haunts Lainey. She admits she didn’t attend many of Summer’s races, and she avoided grief by partying. In Capri, she tells Tyson she sees death as a blackout, but by the end she honors Summer by running a marathon in her memory.

Key Decisions and Consequences

Each choice reflects her struggle between impulsive escape and the desire for genuine connection. The crisis on the yacht is the turning point that forces her to stop hiding behind alcohol.

Theme and Symbol Connections

• Alcoholism and Recovery: Lainey’s arc is the primary vehicle for this theme. Her blackouts, her use of alcohol to numb shame, and her ultimate acceptance of help illustrate the danger of relying on substances to cope.
• Betrayal and Trust: She was betrayed by her father’s lies; she later feels betrayed by Hannah’s secrecy about Olivia. Learning to trust again is central to her healing.
• Friendship and Loyalty: The Summer Pact demands that friends reach out before making permanent decisions. Lainey honors it by showing up for Hannah and later by accepting help herself.
• Self‑Discovery and Authenticity: Lainey’s journey is about stripping away the performer’s mask. The moment in the dressing room with Tyson—showing her naked back and asking him to zip her dress—symbolizes her willingness to be seen as she is.
• Grief and Guilt: She carries guilt for not being more present when Summer was alive. The marathon training is a symbol of channeling that guilt into positive action.

Five Book‑Specific Questions and Answers

1. Why does Lainey initially refuse to contact her half‑sisters, and what changes her mind?
Lainey believes it is not her secret to tell. She internalizes her mother’s diary, which reveals her father’s string of false promises. However, Hannah and Tyson encourage her to claim her story. She ultimately agrees to meet Ashley in Dallas because she is “tired of carrying around this heavy baggage,” as she states just before ringing the doorbell.

2. What is the significance of Lainey’s “déjà vu” during the celebration dinner in Chapter 18?
While celebrating her lead role in The Pigeon Girl, Lainey sees Tyson’s face and feels a moment of déjà vu. She later realizes his expression is the same one he wore while cheering Summer at her races. This connection links Lainey’s success to Summer’s legacy and hints at Tyson’s capacity for deep admiration.

3. How does Lainey’s relationship with alcohol change over the course of the novel?
Initially, Lainey drinks casually and defensively, using vodka martinis and shots to numb herself. After the yacht incident in Capri, she is diagnosed with acute alcohol poisoning. In the hospital, she admits she has “a troubled relationship with alcohol” and agrees to seek help. One year later, she celebrates nine months of sobriety.

4. What role does Lainey play in Hannah’s confrontation with Grady?
Lainey devises the strategy: a public dinner at Le Bilboquet where they pretend to celebrate the engagement, then Hannah dumps him. Lainey also blackmails Grady into repaying Hannah for shared expenses by bluffing about a video, and she forces the influencer Berlin off social media.

5. How does Lainey’s view of love and commitment evolve by the end of the book?
At the start, Lainey believes love is never worth the pain, based on her father’s betrayal. By the end, after her friendship with Tyson deepens into romance, she accepts his proposal during the marathon training in Paris. Her commitment to the pact—and to Tyson—shows she has opened herself to the possibility of lasting love.

Conclusion

Lainey’s character in The Summer Pact is a study in contrasts: the party girl and the serious actor, the cynic and the loyal friend, the one who runs away and the one who eventually stays. Her arc from avoidance to accountability mirrors the novel’s central theme that healing requires honesty—with oneself and with those who love you. Through her fall and recovery, she becomes the person she was always capable of being, proving that even the most damaged relationships can be rebuilt.

For deeper exploration of the novel’s themes, see the pages on grief and guilt, friendship and loyalty, and alcoholism and recovery. You can also read the full book summary or the ending explained.