So my future brother in law asked my fiance if he could be in his wedding party(classy). They aren't particularly close, and they've had a lot of drama in their relationship over the years. My fiance and I both don't really want him in the party, but we know if we say no he will be really offended and possibly not attend the wedding out of spite. While this doesn't really bother me considering what he's done to my fiance in the past, he doesn't really want to lose his brother over this. It's gotten to the point that he's talking about having NO party, which isn't fair to either of us, since we both have people we would like to ask to be a part of our big day. Does anyone have any ideas on how to fix this?