Okay, now I understand about the communication. When you told him not to call on that...in his mind, he took it to heart and then some. As for your children's phones...any old excuse not to do the proper thing. I agree about the boundary setting for the children's phones, etc.
They tend to spout that they are done...but that's in their heads and they are trying to convince you and everyone else, especially themselves. Mine spouted he was done for a long time and when he discovered that I was separating out the bank accounts, removing him from my credit cards and removing myself from his, to protect myself financially, he finally filed...but he didn't do the heavy work because he failed to do the interrogatories, he failed to provide other financial data, etc. I made darn sure I had my ducks in a row even though he filed.
Mia, some of them say this stuff and either drag their feet filing or they don't do a thing about it. The question you have to ask yourself is this...do you want to continue moving forward and leave him out there a while longer or do you want to actually divorce him. Do you want to file? I don't think it's going to change him and the way he's behaving if you file...then again he could become far worse in his behavior. But, that's my opinion.
If you've not read wishing/hoping's threads, you might want to do so. Her postings may help you better navigate your situation and offer up some ideas on how to deal w/your runaway husband.
Whatever you decide to do, do it when you are calm. Anger tends to make us say and do things that we later regret.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.