Thanks for all your help ladies.
Before I'm done I just want to say:
I never meant to insult my FSIL. You all seemd to jump on the bandwagon of tearing me down, so thanks. I apologized for calling her figure "chunky". Perhaps if I had said curvy it would have gone down better. I didn't feel the need to sugar-coat anything. My bad. So sorry to use the wrong word and then to dare to apologize for it. Since I am myself "curvy/chunky/whatever" I didn't think anything of it. "Chunk" is not a nasty word in my family nor in FH's. I have never directed any of my frustration at my FSIL nor will I ever. All of the people who are actually here and who know me and FSIL would not suggest that I was mean to her. All I have ever shown her is love. Was I a little upset that FSIL is in my BP? Yes, but ONLY because I wanted a SMALL BP with the same number of attendants on both sides. It has nothing to do with FSIL as a person. I'm letting it go because I can't do anything about it now and it will make FH and FSIL happy. I have always been frustrated with how my FMIL handled the dress-shopping situation, not FSIL. It was frustrating to hear her complain about everything. Whatever, I'm over it. You all can hate me for it. Have a good time. Thankfully FMIL and FSIL have found a dress that they are both happy with. I gave up on everyone wearing different styles of dresses. Whatever. Not that important I guess. I'm just glad I'm not someone who wanted everyone to wear the same exact dress because I can only imagine how that would have gone down.
I have since talked to FMIL and I wish I had done that sooner versus talking to you lot. All I had to say was that the champagne color was almost identical to my ivory dress and she immediately and gratiously offered to get a new dress. I was very appreciative and apologetic and told her so.
THANKS AGAIN FOR EVERYTHING REALLY