Long story which I will try to summarise. My ex DH is about as toxic as you can get. We have a child arrangements order under which he sees DSs, 11 and 9, basically 1 night per week for 2 weeks and 1 full weekend per month (I get the other weekend). I have long been concerned about how his partner is treating the boys when they spend time at my exes. Over the last few months they have made various complaints about her, saying she pinches, kicks them as well as insults them. I have previously tried to address this by asking my ex to deal with it but he has done nothing. He ignores my messages or when I ask him in person (walks off), refusing to acknowledge what she is accused of. The situation has come to a head in the last few weeks. The last but one visit she called DS, 11, a "massive turd". I asked my ex about this and was ignored. I allowed the kids to go again last weekend and DS came back saying she had said that he was "really unattractive". DS said my ex heard this and asked her to apologise, in response to which she put on a sarcastic voice and taunted DS. I am furious just writing this. I asked my ex about this via text and he point blank refused to acknowledge it. I texted back, I want assurances that DSs will be treated properly when with you, not abused etc. He refused to provide ANY assurances, became abusive via text, so I blocked him. He said he is now going to make an application to court as I am in breach of the order. I've been trying to get hold of my solicitor all weekend but to no avail. Also to add, he was actually supposed to take the boys on Friday not Saturday night this weekend but I had agreed to swap. Can I be in breach if I didn't hand them over on a day he wasn't actually entitled to have them? I plan to make an application next week to try vary the child arrangements order to address the issues with his ex. Wanted advice on what trouble I could be in though for not handing them over.