Let me start off by saying I never did anything to this wacko and the first time she tried to pull some shit with me I let it go and didnt bother bringing up my concerns since our friend/groomsmen broke up with her anyway. Since they started dating a year ago they have spent more time apart/broken up than together. Each time they broke up she freaked out on me and was a total psycho about things he was doing while they were broken up /who he was with and who he was talking to. I dont understand how what a grown man does has anything to do with me especially since he is my Fiances friend. the most recent breakup he started talking to some friends of mine on facebook. Everything was innocent and in good fun, and he even befriended a married couple which are friends of mine and my fiance, as well as a single girl friend. He also made up a dating profile on some site and went out on a few dates he met online as well. The ex stalked our facebook conversations and she went crazy on me for conversations he had with other people and things that were said in those conversations, most of which I didnt know or care abt. She basically blamed me for him meeting other people and said i was the reason they fought and she has trust issues because i threw him at other girls. Ummm whatttt? She also yelled at me for throwing him a party when he closed on his house and said I was disrespectful for not inviting her over. I NEVER DID. he was living in our house, so when he got home from his closing, my fiance and i opened a bottle of champagne in our home, just the 3 of us. It was super late, she lives over an hour away and they were on the rocks. If he wanted to see her why didnt he call her himself? Again, she was misplacing her issues with him on me. After her first outburst I didnt like her anyway and just ignored her but still tried to be nice when she was around or mentioned by our friend. I never tried to egg him on in their breakups and I never let him know about her stalking and her crazy messages to me cu I didnt think hed go there with her again. Shes horrible and I really think the only reason he runs back to her is because hes lonely because she has the worst attitude and isnt a good person. She had the nerve to tell me that she will be civil because she has to be at upcoming events clearly meaning my wedding. I am ready to tell him everything and show him all of her horrible messages to me and have my fiance talk to him. I sure as hell dont want this lunatic at my wedding or any events leading up to it especially because shes been stalking my friends that she doesnt know or met just because they happen to be mutual friends with someone that spoke to her boyfriend while they were broken up for months. Theres not an ounce of class or sense to her and she will start something. Btw shes in her mid 30s so this hs crap is unacceptable. I definitely dont want someone so horrible to be there for my special day. Has anyone ever told someone in their wedding that they cannot bring their significant other for whatever reason? I still think they will break up again anyway because after a few months her fake nice behavior runs out and she shows her true self anyway, but I need advice on how we can talk to our friend and make it clear shes not coming and its final.