<P> At the treehouse party, Peter brings his ex-girlfriend, Genevieve, knowing that Lara Jean did not want her to come . Lara Jean also finds out that the two were hanging out before the party, prompting her to become suspicious, and a little jealous, of Peter and Genevieve's "relationship". During the party, Lara Jean distracts herself from Peter by focusing on John . The group takes it, in turn, to pull an item from the time capsule and then decides to play Assassins, which they often played during their childhood . For the prize, they decide the winner will be granted one wish . Lara Jean is determined to win since she has never previously won a game . </P> <P> After the party, Lara Jean and Peter argue about John and Genevieve, and Peter insists there is only friendship between him and his ex . During the Assassins game, Lara Jean discovers that Peter and Geneveive have formed an alliance, causing her to become suspicious again . Lara Jean finds out that Stormy is John's great - grandmother when he comes to visit the retirement home, and also eliminates him from Assassins . Her next target is now Peter, and John decides to help her out . </P> <P> Meanwhile, Lara Jean and Peter break up when she discovers that Peter knew Genevieve was the person who sent out the video from the hot tub . She tells him if she wins Assassins, she would wish that nothing had happened between them . Lara Jean begins spending more time with John as they scheme to take out Genevieve from the game . Lara Jean ends up winning, and discovers the reason Peter and Genevieve have been hanging out: Genevieve confided in Peter about her father's affair with a younger woman . </P> <P> Lara Jean meets with Peter at the treehouse the night before it is to be cut down . She tells him her wish is for things to go back to the way they were between them, and Peter professes his love for her . </P>

Who took the video of peter and lara jean