My fiance's friend of 20+ years got married a couple years ago I can't stand the idea of his wife being a BM. She's already told me she expects to be a BM and will be mad if not and that their daughter is to be our flower girl, she is controlling, full of complaints and we're not that close. We only talk when the guys get together and I'm nice, but she pawns her daughter off on me the whole time and just complains about her husband and I don't want to deal with trying to appease her but I'm nervous about the inevitable awkward conversation when her husband is asked to be a GM