I could really do with some advice. I split up with my husband 3 years ago and our two DSs are about 50/50 between our two houses. My ex and I don't have a great relationship. My 15year old DS has always been difficult, issues at school with respect and very easy to anger, but it has gotten worse the older he gets. He has been temporarily excluded from school twice now. His attitude to me has really worsened over the years. In the last two years he has gotten more violent, destroying things in the house and hitting me. He is not like that with his father and I have to get his father to discipline him and step in.This weekend he was so out of control, I asked my ex to step in, but he said no as he is tired of stepping in. Things got worse after that and after an argument over the PlayStation my DS pushed me across the sofa and I called the police. My DS is now in his fathers with our other DS who is 13. I've said that I can't have our 15 year old in the house when he is like this and my ex said we had agreed to not splitting up the children and is pushing me for a solution but I don't know what to do. Is it possible to repair my relaltionship with my DS and how? Should he stay with his dad full time for a while (that idea make me feel like a failure and that I am abandoning him, although he says he doesn't want to be here)? Appreciate thoughts. Thanks