Ok so mil is coming down in a few weeks time. For context she comes down once every few months. We've asked if she wouldn't mind babysitting (we never go out, our 2 dc are 12 months and 2.5). She's said yes but has asked if she could invite round her ex step son, let's call him Dave, (27) and his girlfriend. I have never met either of them. My DH knew the ex step son, but they never see each other, and has also never met the girlfriend.
I feel really uncomfortable about having 2 strangers in our house with the kids upstairs. Obviously I know they'll be asleep and nothing would happen, but I just feel funny about it. If one of them wakes up I think they might be a bit weirded out that there's these people in their house. More broadly, it just doesn't sit right with me. Not sure if I'm being uptight?
DH doesn't like it because there was a lot of drama surrounding mil's 2nd marriage to Dave's dad. He cheated and is generally a pretty pathetic person. MIL and Dave's dad have zero contact but mil is still keen to have a relationship with his sons (she got together with heir dad when they were about 16yo). DH doesn't want to be put in the middle of some sort psycho drama and is resentful that he's been put in the position of having to say yes or no to this request.
So Are we being unreasonable?