In the show "The Summer I Turned Pretty," Belly ultimately ends up with Conrad. In the series finale, Conrad surprises Belly by arriving at her apartment in Paris just before her 22nd birthday. After spending the day together, they reconnect deeply, share a heartfelt kiss, and have an intimate moment. Although Belly initially hesitates and worries about their future, she realizes she cannot let him go. The finale concludes with Belly chasing after Conrad at the train station and declaring her love for him, choosing Conrad with the words, "I choose you of my own free will," and the two return to Cousins Beach hand in hand, signaling their commitment to each other.
This ending is aligned with the book series in which Belly and Conrad end up together, marrying and returning to Cousins Beach, reinforcing their long- standing love story.