Is this childish of me? I mean he is evil.....?

In a nutshell: I allowed myself to be doormat for this guy and in the wake of my foolishness,I started to wise up. I started to answer him back and let him no that he was NOT running game on me and I was not sticking his crap anymore. He basically spited me for it and stop taking my phone calls and stealing from me. I was devastated but eventually got over it! The thing is he tried to come back into my life a few months later and I would not let him....as if!! Now anytime he see me he tries to wave me but I dont wave back, he'll text me and I dont respond etc. My platonic male friend says Im being kind of childish but I dont see how. I have forgiven him but I dont want his friendship or cordialship At ALL....is that bad? He was a jerk to me...