Jeremiah's Hookup: The Lacie Drama In The Summer I Turned Pretty series by Jenny Han, particularly in We'll Always Have Summer (book 3), Jeremiah hooks up with a girl named Lacie during a spring break trip to Cabo (or Mexico in some discussions). This happens right after a fight with Belly, when they're on what he sees as a breakup—but she views as just a temporary break.

What Exactly Went Down

  • Jeremiah and Belly, now college-aged, argue and decide to spend time apart during spring break.
  • While partying in Cabo, Jeremiah sleeps with Lacie—not once, but twice , as revealed in fan breakdowns and Season 3 show adaptations.
  • Belly finds out later at a frat party when Lacie brags about it, leading to a explosive confrontation where Belly slaps him and dumps him on the spot.

It's a pivotal plot twist that shatters their "Team Jelly" romance, fueling the love triangle with Conrad and highlighting themes of trust and miscommunication.

Was It Really Cheating? Fan Wars Explained

Fans are split down the middle on Reddit and forums—here's the breakdown:

Viewpoint| Key Argument| Fan Backing
---|---|---
Not Cheating 28| They were "broken up." Jeremiah thought it was over; no formal exclusivity. Echoes Ross yelling "We were on a break!" from Friends.| Defenders call it a dumb mistake by an "idiot" Jeremiah, but not betrayal—+votes in some threads.
Emotional Betrayal 16| Belly saw it as temporary. Hooking up so soon (and twice!) feels like a massive trust breach, especially since they reconcile fast afterward.| Critics slam it as "emotionally unfaithful," with Jenny Han calling it "debatable" technically but devastating.3
Double Standards 59| Jeremiah later cries betrayal over Belly's moments with Conrad, yet excuses his own actions. Plus, everyone cheats emotionally in the series!| Gen Z fans in 2025 discussions say his immaturity shines—toxic patterns all around.

"As the creator... I have to have empathy for all of them." – Jenny Han on Jeremiah's "devastating betrayal," the cornerstone of book 3 and Season 3.

Book vs. Show: 2025 Updates

  • Books : Simpler Mexico hookup; Belly overhears and it's game over.
  • Season 3 (2025) : Amps it up with Lacie Barone namedropped, hospital proposal drama post-Steven's accident, and more Taylor/Steven side mess. YouTube breakdowns call it a "bombshell" reflecting modern accountability debates.
  • Trending now: #TeamBonrad surges as #TeamJelly fans grapple with Jeremiah's "Cabo confession."

This incident isn't just gossip—it's the emotional core driving Belly's big choices, proving love in Cousins Beach is never clean. Speculation? Showrunners might tweak it further for Season 4, but Lacie remains the name everyone whispers. TL;DR : Jeremiah hooked up with Lacie during their "break," sparking endless debate—technical no-cheat, but a relationship killer.

Information gathered from public forums or data available on the internet and portrayed here.