So... please tell me Im letting my resentments and justifiable frustration cloud my judgement...
Yes, you are. Your resentment is certainly understandable, at least I relate. But you don't want to shoot yourself in the foot to make a point, even though AH isn't going to get it anyway. I suggest sitting down and talking it out with a therapist or close friend ... it's a terrific way of diluting the anger. Take out a pad and pen, write him a letter -- which you'll never send -- and let it rip. Congratulations on hanging in there, it's almost over. A big hug.