I am a groom and a situation has arisen concerning our bridal party and I thought this would be a good place to get some advice. My brother is my best man. He and his GF of 5 years, who is a bridesmaid, broke up last month. We think that this break up is permanent, she has moved out. They have both indicated that the split is amicable. But, my brother has said that he did not want to break up, and is clearly hurt. Meanwhile she seems fine and is moving on with her life. When we got engaged, my bro and his GF were some of our closest friends. However, we have did not hear from her until we asked about the break up (about 6 months). Their relationship has been volatile and the couple has argued openly in front of the family no matter what the event; holidays, graduations, birthdays. My fear is that the close quarters of a bridal party will do more harm than good for all involved. Also, I do not think my family or the ex GF will be comfortable spending so much time together. The last thing my fiance and I want to deal with on our wedding day is their drama. I guess we thought she was going to bow out gracefully, but we are now two months out and that hasn't happened. The general consensus is that she should do so or she will at the last minute. She has already declined the invitation to the bridal shower and has yet to RSVP to the bachelorette party. Is there a way to ask her to opt out? Should my brother speak with her? Should I speak with her? Should we do nothing and let the cards fall where they may? Is there any polite way to deal with this situation?