I never talk negatively about my ex in front of our child. My problem is despite my best efforts my ex is on a mission to destroy me. He refuses to cooperate on even the most basic level. He doesn't even talk to our child unless it time for visitation. My son leaves my home looking like a kid and comes back looking homeless. Noone even tells him to brush his teeth or hair! Recently I got my 10yr old a cell phone so he could talk to his father in complete privacy. I do try but what I get in return is complete hostility.