Endgame chaos explodes — The Summer I Turned Pretty Season 3 Episode 10 rips open Belly’s love triangle with betrayal, heartbreak, and one final twist that rewrites everything before the finale.
👉 Brace for Episode 11
Endgame Chaos Explodes: The Summer I Turned Pretty Season 3 Episode 10 Tears Apart Belly’s Love Triangle
The Summer I Turned Pretty Season 3 has been a rollercoaster of emotions, and Episode 10, released on September 10, 2025, delivers a gut-punch that leaves fans reeling. Titled “The Heartbreaking Finale,” this episode rips open the core of Belly Conklin’s love triangle with brothers Conrad and Jeremiah Fisher, weaving a tapestry of betrayal, heartbreak, and a shocking twist that redefines the series’ trajectory heading into the final episode. As the penultimate chapter of Jenny Han’s beloved adaptation, Episode 10 sets the stage for an explosive conclusion in Episode 11, airing on September 17, 2025. Here’s a deep dive into the chaos, the emotional stakes, and what fans can expect as the series races toward its endgame.

A Love Triangle at Its Breaking Point
At the heart of The Summer I Turned Pretty is the tangled romance between Isabel “Belly” Conklin (Lola Tung) and the Fisher brothers, Conrad (Christopher Briney) and Jeremiah (Gavin Casalegno). Season 3 has relentlessly pushed this love triangle to its limits, and Episode 10 brings it to a dramatic crescendo. After a season of wavering loyalties, emotional confessions, and fractured relationships, Belly faces the consequences of her choices in a way that feels both inevitable and devastating.
The episode picks up in the aftermath of Episode 9, where Belly, heartbroken and stranded in Paris after Jeremiah calls off their engagement, grapples with her lingering feelings for Conrad. The decision to end the engagement, sparked by Jeremiah’s earlier infidelity and Belly’s unresolved connection with Conrad, sets a somber tone. Episode 10 wastes no time diving into the emotional wreckage, with Belly navigating a storm of guilt, regret, and self-discovery. The narrative masterfully balances her internal struggle with the external drama of the Fisher brothers’ rivalry, which reaches its breaking point in this episode.
Betrayal Cuts Deep

One of the most gripping elements of Episode 10 is the theme of betrayal that permeates every major interaction. Jeremiah’s decision to call off the wedding, while rooted in his realization that Belly’s heart may still belong to Conrad, feels like a betrayal to Belly, who had invested so much in their future together. Fans on X have expressed mixed feelings about Jeremiah’s choice, with some praising his self-awareness and others decrying his timing. As one user put it, “Jere’s love for Belly is real, but breaking her heart like that? Brutal.”
Meanwhile, Conrad’s actions add another layer of complexity. In a raw, vulnerable moment, he lays bare his feelings for Belly, confessing the depth of his love in a way that echoes the intensity of their Season 1 connection. This confession, however, comes with its own sting of betrayal. Conrad’s history of emotional unavailability and his failure to act on his feelings earlier have left Belly scarred, and his sudden openness feels like too little, too late. The scene where Conrad admits he’s loved her all along is both cathartic and infuriating, as Belly struggles to reconcile her past pain with the man standing before her. As a Dailymotion breakdown notes, “Conrad stepped up in a way we hadn’t seen him do in a long time… but Jeremiah’s pain couldn’t be ignored.”
The betrayal isn’t limited to the love triangle. Belly herself feels betrayed by her own heart, torn between two brothers and unable to fully commit to either without hurting the other. This internal conflict is a testament to Lola Tung’s nuanced performance, which captures Belly’s turmoil with heartbreaking authenticity. The episode’s writing emphasizes that Belly’s choice isn’t just about picking a brother—it’s about choosing the life she wants for herself.
Heartbreak That Hits Hard
If there’s one thing Episode 10 excels at, it’s delivering heartbreak that resonates. The emotional fallout from the love triangle is palpable, with each character grappling with their own version of loss. Jeremiah’s pain is raw as he watches Belly slip away, knowing his own mistakes contributed to their unraveling. Conrad, meanwhile, faces the agony of loving someone who may never fully reciprocate, his confession hanging in the air like a fragile thread. Belly, caught in the middle, is forced to confront the wreckage of her decisions, her dreams of a perfect summer shattered.
The episode’s most poignant moment comes when Belly makes her choice, a decision that feels both inevitable and shocking. Without spoiling the specifics, the symbolism behind her choice—highlighted in a Dailymotion analysis as a moment that “tied every loose thread together”—is rich with meaning. It’s a turning point that forces viewers to rethink everything they assumed about the series’ endgame. Fans on X have been buzzing about this moment, with one user predicting, “Belly’s choice in Ep 10 changes EVERYTHING. Ep 11 is gonna be wild.”
The heartbreak extends beyond the central trio. Supporting characters like Taylor (Rain Spencer) and Steven (Sean Kaufman) grapple with their own emotional stakes, as the ripple effects of Belly’s decision impact the entire Cousins Beach crew. The episode’s ability to weave these secondary stories into the larger narrative adds depth, reminding viewers that this is as much a story about family and friendship as it is about romance.
The Twist That Rewrites Everything
Just when fans thought they had the story figured out, Episode 10 delivers a twist that upends the narrative. While the show has stayed relatively faithful to Jenny Han’s book trilogy, Season 3 has taken bold liberties, and this twist is a prime example. As Us Weekly notes, the season “veers away from the books,” leaving even book fans stunned by the direction. Without diving into spoilers, the twist involves a revelation about one of the brothers that reframes their actions throughout the season, adding a layer of complexity to the love triangle. This moment, teased in the Episode 10 trailer on YouTube, has sparked heated discussions online, with fans debating its implications for the finale.
The twist also sets up Episode 11 as a make-or-break moment for the series. With only one episode left, the stakes couldn’t be higher. Will Belly’s choice hold? Can the Fisher brothers mend their fractured bond? And what does this mean for the future of Cousins Beach? The show’s ability to keep viewers guessing is a testament to Jenny Han’s skill as a showrunner, balancing fidelity to her source material with fresh surprises that keep the adaptation vibrant.
What to Expect in Episode 11
As The Summer I Turned Pretty heads into its final episode, fans are bracing for a conclusion that promises to be both satisfying and heart-wrenching. The official trailer for the final episodes, released just days after Episode 9, hints at a resolution that will address the love triangle while exploring Belly’s growth as a character. Fan theories on X suggest a range of possibilities, from a Belly-Conrad reunion to a wedding that could tie up the series’ loose ends. One particularly bold prediction envisions “Belly finding herself in Paris & Conrad’s letters” leading to a romantic reconciliation.

However, not all fans are optimistic about the finale. Some, like TV Fanatic, argue that the show’s focus on the love triangle has come at the expense of Belly’s character development, potentially undermining her agency in the final episodes. Others believe the show will lean into its Sabrina-inspired parallels, with Conrad emerging as the endgame in a nod to the classic film’s romantic resolution.
The Cultural Impact of The Summer I Turned Pretty
Episode 10 underscores why The Summer I Turned Pretty has become a cultural phenomenon. Its blend of nostalgia, romance, and coming-of-age drama resonates with audiences, sparking passionate debates across social media. The show’s ability to balance high-stakes romance with relatable themes of self-discovery and family has cemented its place as a modern classic. As one X user noted, “Belly actually felt like Belly we’ve come to know… that spark we missed? It’s SO back.”
With Episode 11 looming, fans are preparing for an emotional farewell to Cousins Beach. Whether you’re Team Conrad, Team Jeremiah, or Team Belly, one thing is clear: The Summer I Turned Pretty has delivered a penultimate episode that redefines the series and sets the stage for a finale that will linger in viewers’ hearts long after the credits roll. Tune in on September 17, 2025, to see how it all ends.