The Summer I Turned Pretty's Jeremiah and Belly may as well be this generation's Ross and Rachel with the way fans are fighting over whether they were actually on a break - or not - before he cheated. Jenny Han's hit Prime Video series, which is based on her book franchise of the same name, focuses on Belly (Lola Tung) who gets caught up in a love triangle with two brothers. After exploring her feelings for Conrad (Christopher Briney), she starts to reconsider whether his brother, Jeremiah (Gavin Casalegno), is her perfect match.