I've been married 23 years. I adopted my wife's kids 19 years ago. My 2 kids have a half sister whom they love as do I. She's been here many times to visit in particular, my son. She is now a Mother. This weekend her entire family is coming including my wife's Ex. Am I a chump for allowing him to stay here? I don't want him here but, part of the (unsaid) bargain is allowing my son to see his half sister. I just want to do what is right by him but perhaps my ego is getting in the way but...............I think about it for a tick and I'm like, "My wife's Ex is in my house and spending the night?" Am I being ridiculous? I don't wish to come across as a selfish prick if I nix this.