Forgiveness and Friendship

Forgiveness is a very tricky thing for me. I can forgive but never forget. I use to just shut the person off that had hurt me but in these past few months I've gotten into the habit of letting the past be the past. But when a friend hurts you more than you can imagine and in a way that totally messes up, what then? I cherish my close friends more than anything in the world and never hold grudges against them cause they mean so much to me. But this is a whole different story. Ive come to terms with what happened but I dont think I can continue with the friendship. I respect that he realizes what he did was wrong and he is sincerely sorry but this cut was just too deep. Our friendship is now filled with fear instead of trust. Part of me does what to continue being friends with him but I really dont think I can. But then I can't help but feel as if I'm being cold. I think this battle is worth fighting and Im going to stand my ground!