<P> Lara Jean and her friends rent houses for Beach Week . While there, she decides to sleep with Peter for the first time . As they are about to have sex, Peter becomes uncomfortable and the two do not go through with it . When she returns home, Lara Jean meets with Peter's mother who tells her that Peter has started talking about transferring to UNC . She asks Lara Jean to consider breaking up with Peter so that he can have a good college experience . </P> <P> At the bachelorette party for Trina, Lara Jean gets drunk for the first time and breaks up with Peter, telling him she only wanted to sleep with him to neatly wrap up their relationship . Peter is hurt, and when Lara Jean sobers up she is devastated . Trina urges Lara Jean to reconsider and at her father's wedding, Lara Jean takes Peter aside and tells him she wants to continue their relationship . </P> <P> Despite not knowing what the future holds, Lara Jean and Peter decide to stay together . Peter writes a new contract between the two, echoing the contract drafted when they were fake dating in the first novel . The book ends with Lara Jean feeling confident that her relationship with Peter will last . </P>

Who does lara jean end up with at the end of the books