I split up from ex about 10 years ago and for a while he was very involved in their lives taking them to football and seeing them 2 nights a week. He got a new girlfriend about 2 years ago and since then there has been a massive change in his behaviour towards them. He frequently tries to cancel seeing them at the last minute. The separation agreement states a week in each holiday and a fortnight in the summer but I cannot remember the last time he actually did this. He tends to take them a Monday morning then drop them back a Friday night in the weeks he takes them and asks for his usual nights off the week before seeing as how he has them a week. Last summer he was meant to take them a fortnight and asked to return them 2 nights during that fortnight as he needed some time alone with his girlfriend. He totally doesn't think he is unreasonable and doesn't see his behaviour as having changed. He said I need to look at my attitude since he got with his girlfriend. I have tried to talk to him about this a couple of times but he just got angry and said I was making it all about me. I try not to bring me getting time to myself into it but why do I even feel like it's wrong for me to expect any time to myself. I don't really have much family support, my mum died in 2015 whereas he can leave them with his mum whenever he wants (and frequently does) I guess I'm just asking for if anyone has successful strategies for dealing with this behaviour. I hate conflict. The main thing is I don't want my kids to feel unwanted and one of them has already said he doesn't feel like his dad loves him as much as he loves his brother. I tell them I love them and have good chats with them to try and make sure they know they are loved but it feels like I'm fighting a losing battle when their dad acts the way he does. My own dad left when I was 13 and I didn't see much of him after that - I feel that had an impact on my self worth. My kids are 13 and 15 and I kind of wish he'd been this disinterested in the first place instead of the change of behaviour. In an ideal world he wouldn't have lost this much interest in them.