If you’ve binged The Summer I Turned Pretty or devoured Jenny Han’s books, chances are you’ve asked yourself the same burning question: who does Jeremiah cheat on Belly with—and why does it matter so much to their story?
As fans who live for love triangles, messy teenage romances, and the kind of drama that keeps you up past midnight saying “just one more episode”, you already know Jeremiah Fisher isn’t as perfect as he seems. Today, we’ll unpack what really went down, why Jeremiah’s choices cut so deep, and what it means for Belly’s journey through first love, heartbreak, and figuring out who she really wants.
Why Fans Obsess Over Jeremiah and Belly’s Relationship
If you’re a teen or twenty-something fan of YA romances, you probably relate to Belly’s rollercoaster of emotions:
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First crushes that feel like the world is ending or beginning.
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Complicated friendships where lines blur into something more.
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Big romantic choices between stability and passion.
Belly’s dynamic with Jeremiah strikes a chord because it feels real. He’s charming, funny, and always there—but his flaws remind us that even the sweetest guys can break your heart.
So, Who Does Jeremiah Cheat on Belly With?
In Jenny Han’s book It’s Not Summer Without You, it’s revealed that Jeremiah cheats on Belly during a spring break trip. The betrayal doesn’t come from some mysterious stranger—it’s a random hookup, which makes it sting even more.
This wasn’t about falling in love with someone else; it was about poor choices, immaturity, and Jeremiah not realizing what he had until it was almost gone. For fans, it’s not just the act of cheating that hurts, but the fact that Belly trusted him so deeply.
Why Jeremiah’s Betrayal Matters
Cheating is always painful, but in Belly’s case, it hits harder because:
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She already feels torn between Jeremiah and his brother, Conrad.
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Her trust gets shattered right when she’s learning what love means.
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It complicates the love triangle, making fans debate endlessly who she should end up with.
For young fans watching or reading, Jeremiah’s mistake is a reminder that relationships aren’t just about grand gestures—they’re about respect, consistency, and honesty.
Lessons for Fans Navigating Their Own First Loves
You don’t have to be in Cousins Beach to understand the themes here. If you’re a teen or young adult figuring out love, here’s what Belly’s story might teach you:
1. Red Flags Shouldn’t Be Ignored
Even if someone is sweet and funny most of the time, actions speak louder than words. Jeremiah’s betrayal showed Belly (and us) that charm doesn’t excuse bad choices.
2. Trust Is the Core of Any Relationship
No matter how intense the chemistry, if trust is broken, rebuilding love becomes almost impossible. Belly’s struggle reflects what so many of us feel when someone we care about lets us down.
3. You’re Allowed to Outgrow Someone
Just because someone was there for you in the past doesn’t mean they’re the right person for your future. Belly learns that heartbreak can actually guide you closer to the love you deserve.
Team Jeremiah or Team Conrad? The Debate Lives On
Let’s be honest—half the fun of The Summer I Turned Pretty is choosing sides. Jeremiah fans argue that he’s warm, supportive, and fun. Conrad fans claim he’s the deeper, more passionate choice.
Jeremiah’s cheating scandal tipped the scales for a lot of readers, pushing them toward Conrad. But others argue it makes Jeremiah more human, showing that even the “nice guy” makes mistakes.
What do you think? Does Jeremiah’s betrayal make him unworthy of Belly, or do you believe he deserves redemption?
Conclusion: Why This Question Still Captivates Fans
So, who does Jeremiah cheat on Belly with? The answer is simple—a random hookup. But the impact is massive. It’s not about the “who,” but about the why and the what it means for Belly’s choices.
If you’ve ever been betrayed, questioned whether someone really values you, or struggled to decide between your heart and your head—you understand why this storyline resonates so deeply.
And that’s why fans can’t stop asking, debating, and rewatching.