WHOA. I would think all my trust for her would be gone...that was TOTALLY uncalled for. Is only your fiance going to be seeing someone in the future, not the two of you together?
If I read it right, that is my understanding...and he needs to see someone else. She can't be impartial towards you and she has made that clear. She told you to forgive yourself than turned on you in front of him like something off of a bad talk show. It sounds just awful. And no one acknowledged you crying?? God, I am so sorry that happened to you.