How can you forgive a cheating husband?

Just went through this with a serious boyfriend. Instead of easing the pain he made the admission as painful as possible. You wont be able to forget unless you lose your mind. I personally cant forgive cheating. If I have given a person my love, devotion, kindness and I am betrayed and humiliated they no longer deserve me. I dont expect anymore than what I give. I do believe the statement, once a cheater always a cheater, I think its part of a person's core personality traits. DUMP HIM AND DONT BE A DOORMAT.