Should I just move on or should I forgive him?

wow girlfriend, i suggest leaving him to think about his actions and see if he changes, cos if does it means he likes you and cares about you. If you love him then give him i second chance... but if he isn't the one then move on, there are millions of boys out there that fits you perfectly. Maybe he only acts like a jerk cos he wants to show off. I think giving him a chance is the way to go because you never know, if he doesn't change, you might still be friends. Friendship always conquer all things :) hope i helped you out.