My parents, my FI and I were all discussing wedding logistics today - we settled on a venue for ceremony and reception, yay! - and the topic of who I was choosing to be a bridesmaid came up. I am having 4 or 5 ladies (unsure of the number - not planning on asking them till later) as BMs, and they are all good friends of mine. When I told my mother who I was planning to ask, she looked at me, horrified, and said "Not (SIL's name)?"
I'm sure the reason she asks this question is that my SIL and my brother were married June last year, and I was one of her two BMs. I love my SIL, but I don't want to ask her to be a bridesmaid just because she asked me (belatedly, I might add, she TOLD me I was in the wedding 2 weeks before after I had already purchased a dress; she didn't actually ask) to be her BM. It didn't feel like the honor it should have been because of the way it was handled.
I understand that it is not tit for tat in weddings, but how do I explain this to them? The girls I want standing up with me are close friends of mine. Plus, I know I would get frustrated with her whereas my friends are all extremely laid back. What would you say if it were you?