Do not believe anything he promises/tells you. They like to tell us what we want to hear and then they do the exact opposite in most cases. You will now need to look at your situation as a business deal gone south and protect yourself, your children and your assets as much as possible.
That's the hard part - he's sworn to me that he won't come for his equity in the house (we've only been in it for 3 years), that I can keep all the monthly child tax, he won't come for my pension, he only wants a tv and dresser. He said he doesn't hate me and wants the house to stay as normal as possible for the kids. We both work jobs where we see the results of kids being used as pawns in divorces and have always sworn that that would never be us. Even before the talk of splitting happened, when it happened with friends, he swore he would work two jobs to ensure the kids could stay in their home. He knew what it was like to constantly move and hated it.