I am still moving on?

My ex dumped me a while ago because he was going to this university. He was my first boyfriend. At first, I did not want to go to this university because of him, but I have decided not to let this chump stop me. It hurt me a lot. I still am hurting today more in anger of the way he did me. But its cool. What goes around comes around. I am mad how he just lefted me without and goodbyes and blaming me for everything. How to continue to move on without punching him when I see him there?