SIL to be Issues
I am having a few issues with my fiance's sister currently regarding bridesmaid dresses. We do get on, but we are not amazingly close - I don't think we would be friends if we just met at work etc. I feel like I have spent a lot of time and effort trying to make her like me, doing things for her etc and for the most part we are fine, but there are times when she will just turn on me and she can also be very critical of me. However I asked her to be my bridesmaid as I thought it would be nice and I wanted her to be involved - though I think she feels it was her right to be my bridesmaid. I get the distinct feeling she is not thrilled about the fact I and her brother are getting married and there have been numerous occasions where she has made comments about what we what we have planned for our wedding which I have found very hurtful.
The tipping point has been bridesmaid dresses - I send a message around to all my bridesmaids with a couple of dresses I liked, and suggesting we try and fix a date to go and try them on. Whilst the rest of the group like the dresses, which are long and elegant, and were happy to meet she messaged me separately to say that she doesn't like them and wanted something very different etc, says we are looking for them far too early and has been stalling in trying to set a date. I am trying to stand my ground, as the dresses I have found are just what I am looking for, will fit the feel of the day and will suit everyone, and I have tried to explain this, but the situation has escalated massively with her and her brother. I am being made to feel that I am selfish and stubborn because I like these particular dresses, which the rest of my bridal party also like, and I feel like the only way to resolve things is to give in to her.
This is really getting me down. I am stressed already with various big changes in my life as well as the wedding and being busy at work and trying to lose weight and arguing with her and my other half is just too much. Am I being unreasonable? I didn't think I was, but now am doubting myself. How do I resolve this? I can't have it out with her as I think that will cause major issues between me and my H2B but I can't let her walk all over me, can I?