I was also going to say this. He should absolutely never be alone with her and should try to limit contact with her at all. This girl does not need to be in your house. Also, as much as you don’t want to embarrass her, yourself and your husband should have a talk with her parents about it. If she is spraying his cologne on herself and calling him her boyfriend, her parents could easily assume something very inappropriate is going on with your husband. Better to get in front of it and put a stop to that NOW. I would also tell the school what is happening since she is telling people at school that she is dating your husband. It’s already gone too far.