Fans have really high expectations about how The Summer I Turned Pretty will incorporate crucial book moments in season 3. The hit Prime Video show, based on a book series of the same name by showrunner Jenny Han, focuses on a love triangle between Belly (Lola Tung), Conrad (Christopher Briney) and Jeremiah (Gavin Casalegno). After exploring her feelings for Conrad, Belly starts to reconsider whether his brother, Jeremiah, is her perfect match. Season 2 of The Summer I Turned Pretty ended with Belly closing the door on her past with Conrad in order to explore a future with Jeremiah.