The TV series "The Summer I Turned Pretty" (TSITP) ends with Belly choosing Conrad. In the Season 3 finale, Conrad comes to Paris to find Belly just before her 22nd birthday. Belly finds him on the train and tells him she chooses him freely. They kiss passionately and declare their love, reuniting at last. The series closes with them together in Paris, returning to the beach house hand in hand, and looking forward to their future together. The finale also resolves other characters' arcs, with Jeremiah moving on with Denise, and Taylor deciding to move to San Francisco with Steven. The ending is emotional and satisfying, honoring Belly's journey and growth, and reflecting the original novels' spirit, though with some differences in details.

In the books, Belly also ends up with Conrad after breaking up with Jeremiah, and years later, they are married. Belly receives a letter from Susannah envisioning her happy future, and ultimately, Belly and Conrad's connection is maintained through letters until their reunion.