Reality is that it's not going to be just up to you to put a roof over the kids heads. Being practical in all things as you're going to have to be, she's going to have to pay you child support.
Tell her to put that in her happy pipe and smoke it.
Unless of course, you're gonna let her skate on that, too.
As you can see, I'm wearing my b*tch hat tonight but when I think of how naive I used to be money-wise and all the crap I have had to endure in order to pull my head out of my ass and grow up, it really pisses me off to see her thinking she's about to walk off with half your assets and leave you alone to support the girls. Sometimes I think she ought to be tossed out on her ass so she can get a big dose of reality. I'm sorry, Frank but what you see as sugar and light, I see as ignorance and selfishness. The plus side of that is that ignorance can be cured. So long as nobody blocks the path to REAL enlightenment...which is sometimes by way of the front door.