MIL remains close with a friend she's had since high school. Their kids are about the same age. We invited MIL's friend and her husband; FI is friends with one her 3 kids, and that's the only one we invited (with her husband too). The kids are all adults....25+ years old.
We got an RSVP from the 1 he's friends with today...again, it was addressed to her and her husband. Her RSVP said "DH is having oral surgery that week. If he can't make it, my brother will come in his place." Ordinarily, numbers are numbers and I alotted to have this woman and her husband come, so it's not the money...BUT...
1-I'm worried about where this puts the 3rd adult child, seeing that her 2 siblings are coming. Giving her an invitation at this point is not an option, it's rude and 2nd tier, we aren't doing that at all. I'd prefer to leave well enough alone.
2-I don't know how else to say this, but FI doesn't like this guy and I get a creepy vibe from him. It's been swept under the rug, and FI only told me because I entered the relationship with kids and sometimes when MIL hosts parties, this family is there, but he was sexually abused as a child and has been, eh, odd in the company of children. He told me this so that I would know to watch my kids around him. Nobody has left their kids alone with him, so I can't say with certainty that he has or would do anything inappropriate, but my creepometer was through the roof even before FI told me this.
It's a relatively big venue with a huge grassy backyard where dinner is taking place and dancing inside the historic mansion. I suppose I can designate a family member to keep an eye on my kids (9 and 8, maybe my 14 year old can do this), but I worry about where that puts other guests' kids. I would hope that nothing would happen, but there is plenty of space and opportunity. I just have an awful feeling about this.
So FI could call his friend and say something, but that may cause problems. We could ask MIL to address it, she's pretty awesome that way, but I don't want to cause a rift in their friendship and her kids are all adults, so it's really not her place. Or we could allow her to bring her creepy brother who was deliberately left out and I could worry all night about the decision I've made.
It's a craptastic situation all the way around and I'd really appreciate some feedback.
