I have full legal and physical custody of my two children. My ex has visitation that was set up by him and I. The last six months have been hell becuase he has started dating a girl that has a drug/drinking problem and has recently been arrested for DUI. I refuse for my kids to be around her so then my ex just don't want his visitation. He tells me he will take me to court but i'm not sure for what. I'm still offereing him to see them just as much as he did before but not around her. They are not allowed to stay the night at his place if she is there. Can he take me to court? Will the courts side with him given his and her records?