Hi Anon321123,
Yes this is 100 percent his fault, do not let him make you think otherwise. You sound so strong.
I don’t know much about non molestation orders, is there nothing that the police can do if he continually breaks the conditions of this? As he is not using the fact that its left open to talk about the kids, he’s using it to further abuse you. Can you keep a log of every incident like this and seek some further support about the order? Sending massive hugs x