FI and I decided almost a year ago that aside from spouses and fiances, there would be no plus ones at the wedding. Well, now his brother has been "dating" this woman for 4 months (on and off again) and he essentially said that if he can't bring her, he won't be the best man. I am so irked right now at him, and FI is just stunned. My fear is that even if FI does bring her, he won't really be here, he'll be busy showing her around town (they live out of town). FI brother is in his 40s, but he acts like a 17 year old. Nobody else has had a problem with the plus 1 rule, even my cousins who have been with their girlfriends for almost 4 years, each. FI is tempted to make an exception to the rule, but I'm afraid that this won't be an isolated incident. His brother is making him feel guilty for things that he was never a part of, and trying to manipulate the situation.
FI and I also don't agree with this relationship. FBIL has broken up with the woman a few times and each time she threatened to kill herself. There are other things too, but I don't want to get too into EVERYTHING.
I told FI my feelings and told him that i don't want him stressing over it, and that I'll support any decision he makes.
