The relaxed happy ex

This week my ex husband's cheerful texts on things he needs me to do for children (who are with him) make me want to hurt him.

I don't like who I am at this moment. I practically hate the man. I hate that he acts as if he has no functional issues, at the same time counting heavily on me for the children. I hate that he pretends he hasn't used me and been dishonest to me and hurt me. I hate that he makes no attempt to make amends. I hate that he conveys he's so happy and relaxed now.

I know what he conveys is probably not the whole picture. He always works hard on his appearance. He's a good actor. He might still struggle with some issues, having the children 50%. But it hurts to see him happy while I'm miserable. I'm the more reliable parent. Without me our kids would have suffered neglect. He pretends the family hasn't relied on me to function and still does. He acts like he has nothing to do with the state I'm in. He does nothing for closure. I'm not expecting it, but I am so angry that he had to destroy my trust entirely and trample on me before he left. I was already in a vulnerable state, smelling burnout, that's why I had to divorce him. 

I don't feel I'm much of a resource for anyone now, I'm depleted. Time with the children isn't joyful even though I miss them terribly. I'm stressed by having so little to offer them and by being so unhappy.

So the way he's let our relationship end is bad for his children. 

I hate that I'm still overworking to compensate for him. I'm reluctant to let him handle important things in the children's lives, because they might suffer. But maybe I should. 

Or maybe I should tell him that he's putting his children at risk by kicking me in the head while relying on my brain to save the day.

Something has to change, or I'll have a breakdown and won't function.

What have you done?