Belly is still caught between Conrad and Jeremiah on season 3 of Prime Video's The Summer I Turned Pretty - but who did the character end up with in Jenny Han's book series? The popular show started as three novels about a love triangle between Belly (Lola Tung) and brothersConrad (Christopher Briney) and Jeremiah (Gavin Casalegno). The Summer I Turned Pretty served as the inspiration for season 1 while It's Not Summer Without You was the basis for season 2. Viewers were expecting season 3 to rely heavily on the events in Han's third and final book in the series: We'll Always Have Summer.