How much is enough?

How much hurt is enough? I'll always love him. There are too many good memories there to just write him off as an unloving, unfeeling, giant jerk...but really, how much of the awfulness can I take. When he calls and says those awful things to me it hurts, but I believe in loving people unconditionally, so where does that leave me? Hovering somewhere between hatred and love...sorrow and empathy...part of me wants to run to him and grab him and just hold him until he stops being not so nice...and the other part of me just wants to run...