Justme,

Have you decided how long the stay is allowed to last? If you don't set a time limit, you will probably become more and more stressed about the whole thing. The uncertainty must be really tough. Doesn't he have ANY friends or other family in the area? This really isn't fair to you. Personally, I could never do what you're doing. My stbx would have to stay outside in the garage or something!!

Are your kids at least enjoying having him there?