 After many failed relationships, Nick tries to rekindle his romance with Caroline and almost moves in with her at the end of season 1.In season 2, he writes a zombie novel called "Z Is for Zombie" He and Jess become attracted to each other and they kiss in the season 2 episode "Cooler".Afterwards, he and Jess are confused as to how to deal with their relationship, but later have sex in the episode "Virgins".