<human>: Can you give me a shortened version of the text?

My ex and I dated for approximately a year and a half. I've come to the conclusion that throughout our relationship he was verbally abusing me. I was never good enough for him and he always made me aware of that fact. For a while I took it as him just trying to make me a better person (gotta love those relationship-blinders).

Another huge problem in our relationship was his family (divorced parents and one set of grandparents). His father and respective girlfriend were never nice to me or him and my boyfriend would take all of the pain he was feeling from his father and push it at me. His mother and her parents all hated me (because I didn't have the same heritage as them). He constantly took their side on things always putting me down.

I finally ended it but we were friends before we ever started dating and I still wanted to be friends after we broke up (sounds really stupid now). Every time I would talk to him I would get flashbacks about how terrible he and his family treated me. Finally I said I didn't want to talk to him for a while. He's still calling me when he has problems (like his father treating him like shit). I don't want to talk to him but I also have a heart and can't just turn someone away when they need a friend. What to do?
<bot>: My ex still wants to talk to me but I don't want to talk to him back but I don't want to be mean. What can I do?