I would really love some advice. My FMIL texted me about my FSIL planned attire for my upcoming wedding. It is a short, white cocktail dress. She specifically asked whether or not I would have an issue and if I approved. I don't know what to say. My FH had already showed me a picture and he had told his mom that he didn't know if I would care, but he thought people would probably side-eye it. My FMIL is very sweet and really wants me to be happy with everything. The truth is, I think it's weird that she would pick that dress. But I guess I don't really care. I know everyone will talk about it, and I won't really feel like I will defend it...since I DO think it is weird!
My FSIL and I don't have a great relationship, not a bad one, really we just don't have one. She is still "finding herself" and we have just never really connected. She is still has some growing up to do, and we also don't live near each other. The last thing I want to do is sound bitchy by telling her mom, I don't want her to wear something. But she asked me and my FMIL has told me many a times that she really wants me to be honest with her about things (ex. Not liking a place for the RD, that she really prefer that I am happy than that I make nice). Any advice would be great.