My Fiance and his sister have never been really close, and had a total blowout a few weeks ago. In the midst of the argument she admitted that she doesn't like me, and never did. She's always been standoff-ish, and I just assumed that was her personality. After their argument, I don't even want to talk to her, let along ask her to be in the bridal party. I know it may be that she said it in anger, but we've been together for 4 years and she's never warmed up to me, we've always just been polite acquaintences. I know his mom will be heartbroken if I don't at least attempt to ask FSIL to be a bridesmaid, but it makes me anxious to even think about it, let alone try. Has anyone ever asked a future in-law to be part of the wedding to keep the peace? I feel like a bridezilla for wanting to kick his sister out of the bridal party...