Exh and I separated 3 years ago. We have 2 dcs, ds is 13 and dd is 9. I left him due to domestic violence and emotional abuse. I have since met someone else and we have a baby. Older two dcs live with me, ex has them 3 weekends out of 4. On Friday evening ds told my dp that he wants to live with his dad. Apparently ex has told them the split was all my fault, that I cheated with my current dp...he even went so far as to tell ds that me and dp had sex in a hotel room while I was still married to him. Therefore ds resents me for the whole situation. None of this is true. Ex has told him that if he lives with him he will not make him tidy his room like he has to here, he will let him stay up later..all kinds of bribery.
Earlier on this year ex went to the ss to try and have the kids taken off me. He lied to them saying that dp is a paedophile, I have mental health issues, loads of stuff that ss investigated and found to be untrue. So now this is the route he is going down. There have been other instances of him messing with the kids heads, when I was pregnant he told them we would love the baby more than them etc. I have never told the kids the exact reasons we split. I don't want to slag their dad off to them. I know for a fact he doesn't really want the kids...this is all to get at me. He has two other kids, both with different women who he doesn't even see. My dcs don't even know about one of them. He's a manipulator and a liar. What should I say to ds? How should I approach this? I'm obviously going to tell him he can't just go and lie with his Dad but at his age how much would a court take his opinion into consideration? Please help, I'm totally stressed about this. I know that if ds went to live with his dad he would be totally turned against me and dp and his sister.