I left my ex 2 years ago, he was emotionally abusive and would put me down in front of the kids and even to this day talks bad about me to them. In our relationship I always put him and the kids first, he put himself first before anyone else.
As I left him I have felt guilt over hurting him, so have let him have his way a lot. He works shifts so never EVER helps out in the week with the school run etc. even if he has a day off. So Monday - Friday I do everything for our kids. If he has a weekend off he will then take them, these days he's been booking off most weekends so basically I do all the hard work in the week and then he will take them from me Friday evening and drop them home Sunday evening (usually at or past their bed time so that they have little time to even see me.)
My kids are suffering with a lack of routine, and also I'm fed up of bending over backwards for him and he treats me so disrespectfully.
Last night he took them to an event which was not really appropriate for their age as it started at their bed time. They got home in the early hours of this morning, and he contacted me today when my kids should have already been dropped off, to tell me they would not be able to make a kids party I was due to take them to today. I was furious, as I had 30 mins to inform the mum of the party who had prepared food/party bags for them. Both my kids are also poorly now as they're exhausted from being out til late, and so I'll be the one who has to take time off work tomorrow if they can't go to school.
He didn't apologise and has switched off his phone as he 'can't be bothered to deal with an argument.' It's pathetic and I have no idea what time my kids are now coming home today.
What do I do? I try to set boundaries and he doesn't follow them. I'm not the type of person to stop him having them - I have no family to help me so when he has them it's the only time I have a break - but I just feel exhausted from it all. I'm also fed up of being treated so poorly by him when basically I do everything. He's so mad I left him he is constantly bitter and nasty to me - even today wouldn't apologise, just told me he's not going to stop doing things with his kids because it 'ruins my day.' (Yes because I really wanted to take them to a kids party because he refuses to do anything like that with them.)
Does anyone have any idea what I can do to make him be more reasonable? Part of me feels like telling him he can't have them any more if he's going to be the way he is, but I just don't feel I can do that. Plus legally I probably can't anyway. I just feel so stuck and upset about the whole situation, not to mention drained. Any advice on how to co-parent with such a pain is the ass would be much appreciated.