I'm not happy about it personally, mainly because I was lied to by omission by my ex. He didn't inform me his new partner was affected in this way before he gained regular weekly overnight stays. Dcs are coming home talking about how both he and new partner "think they're fat but they're not" how they're "on a diet that's supposed to have ended but it's still going on". (New partner is stick thin). Youngest has been sticking his fingers down his throat til he's sick. What should I do? I can't break court order by not letting them stay with them. Do I have grounds to go back to court and try to change it? AIBU?