I don't have a ton of girl friends, so I asked our best man's girlfriend of about a year to stand up. We're friends, but not great friends. I'm really good friends with our best man though, so I thought it would be a nice thing for him. Unfortunately, they started having relationship problems recently, which hasn't been helped by our BM finding out he needs to move across the country for military training in October. My wedding is in August. What do I do if they break up? I don't want angry fighting at my wedding, but I also don't want to try and find someone last minute to be a bridesmaid. I'm also afraid a new gal wouldn't get her dress in time. I don't want to be a worry wart or wish them ill, but I also want to be prepared just in case.