You shouldn't pretend you like someone.
Ray is jealous when his ex girlfriend goes to prom with one of his football teammates.
Ray wants to have a good time at prom.
Ray goes to prom with his single friends and ignores his ex.
Ray asks Beth, a girl his ex doesn't like, to prom with the intention of getting under her skin.
Ray enjoys prom night with his friends.
Beth sees Ray is distracted by his ex and feels as though she's been used.