The Summer I Turned Pretty has completely abandoned the events in Jenny Han's book series to wrap up Belly, Conrad and Jeremiah's love triangle in a new way. During the Wednesday, September 3, episode of the hit Prime Video series, Jeremiah's (Gavin Casalegno) decision not to marry Belly (Lola Tung) has repercussions for everyone around them. While she immediately got on a plane - without speaking to Conrad (Chris Briney) first - Jeremiah spent the entire episode either drunk or angry with anyone in his path.