fuck him

I still have a lot of pent up anger from my last relationship. I broke off a 2 year relationship about two months ago. Overall hes a good person, he just has a lot of growing up to do (were only 19 and started dating in highschool) I couldnt sit around and wait for someone to change, its just not healthy for my mentality. However, there was a lot of things that I allowed in the relationship that I shouldnt have. Constantly spending my money, blowing me off when were supposed to go out, his sense of entitlement, and espcially his overattachment to his family to the point where its not healthy are just a few examples. I just cant seem to let all the anger go, and now that hes home from college and I see him here and there (we live close) its worse. What should I do?