11 Jenny Han Books to Read If You're Craving More "XO, Kitty"

In "P.S. I Still Love You" ($8), Lara Jean and Peter officially become a couple, but drama unfolds when one of Lara Jean's old crushes, John Ambrose McClaren, comes back into her life after receiving her love letter, causing her feelings for him to gradually return. At the same time, Peter begins spending time with his ex-girlfriend, Genevieve, and appears to be hiding something from Lara Jean, which causes her to further question her relationship with Peter.