question. a groomsman/bf has a gf for 2 months now and we have only met her once. by the wedding if they're still together, it'll be 6 months for them. my FH has told him that if he doesn't get to know her more by the wedding, she's not invited as a +1. all hell broke out and they're mad at each other. he's sticking by that he doesn't want a stranger at the head table with us just for the purpose of +1 convenience. he also gave him the option of leaving the bridal party if he wants. i don't agree with any of it and think it's rude, but every time we talk about it he stands his ground. please help.