I know, I know, know you aren't suposed to uninvite someone who you sent a save the date to. So how would you lovely ettiquette ladies choose to handle this situation. We are getting married in Vegas this summer, we sent out save the dates after the new year. Shortly after we sent them out we found out a couple was splitting us. NBD we were still going to invite them both. He is one of FI childhood bestfriends, and I have become friendly with his soon to be ex-wife over the last 5 years. We are super close, I wouldn't pick up the phone and call her for lunch, but we have mutual friends and can have a good conversation when we go to gatherings together. Anyways, now things have taken an uglier turn. She RSVP'd that she was coming, and she is bringing her new bf that she cheated on her husband with. NO WAY! He was never invited, she doesn't get a plus one! Then, she lets me know her 30 birthay is the week before, so she is going to celebrate it the night before my wedding i vegas and gave me a list of about 10 people I need to add. She says they are mutual friends, but all of them are more like mutual aquantances. Plus, the night before my wedding, is our bachelor and bachelorette parties, and she suddenly is inviting extra people for me sisters to pay for? I guess, one of my friends even mentioned to her that it wasn't polite to add people to others events, and her reply was "its vegas, wha t is she not going to let us in the door." I don't give a damn about being in the spot light, if she wanted to toast to her birthday or what not IDGAF but to add 10 more people and her new BF to my bachelorette party and wedding, no! So FI really wants me to call her an uninvite her. I told him we already sent a save the date and it would be perceived as rude. He says the invitation for was for the married couple and because she did what she did to his friends, he doesn't really want her or her drama there. I don't want to come off as bridezilla, but I also don't want any drama at our wedding and we only invited her because she was a spouse of FI friend. Am i crossing the line if I let her know that she isn't invited? SHould I just let her know she is the only one that is invited to the wedding related events and if she has others, including dates they will not be accomodated? I can imagine he still showing up with her possy and crashing our events and making a big scene if we try to not include them, plus I am worried about the mutual aquaintances gettting the wrong impressoion because they will be getting everything from her side.