There is so much more to this story I want to share but it would be a novel...Long story short, my fiance's older brother is now getting married for the second time two months before our wedding. My future MIL told me I should invite my future sister in law's parents to our wedding. I have never met her parents, and was not planning to invite them as neither my fiance nor I am close with her family. I replied that my parent's aren't invited to their wedding and the MIL's reply was that they are having a "small wedding" (100 people) while we are having around 180. After MIL suggested, I said I would talk to my fiance, and she went around my back to him and said the same thing. What should we do?