Do not leave. From a legal stand point, one of the worse things you could do.
I know things look like they are moving quickly, but this has only been a short while. W seems to be showing a lot of confusion right now Spartan, and the treatment of the kids is just an extension of that anger and confusion. If you were absent emotionally during marriage then the 180 is to continue what you are doing. I would make plans with kids and not necessarily include her. Let her come with you if she wants. Don't ask in front of kids and don't put kids in position where they put W on the spot by saying " are you coming"? I don't know how to finagle this in your situation, but you should not expect family times etc.
I tried the acquaintance thing with H, and it only got back the cold shoulder for me. But in my case, we are separated and he is seeing someone so......
