What PurpleRose said. Those promises are real nice, but ask yourself this: does he have a very good track record with following through on promises?
I heard all that, too. Within a week, he had changed passwords on all accounts, and has since found a way out of paying me half the retirement. He balks at paying his half of anything, and still sends me texts about how he's willing to "help" with the children. Protect yourself, protect your children. Get it in writing and signed by a judge.
As to going back to school, I'm not sure how it would come out with a legal separation, but my tuition and books are covered fully by Pell grants right now. It even covers pencils, paper, etc. If you don't qualify for Pell grants, go on fastweb dot com and apply for every scholarship going! It takes a bit of time to fill out all the info, but then they match you to scholarships, grants, whatever. It's worth your time! Truthfully, I was worried about how I was going to afford to go back to school, but really all I have to worry about is keeping my 4.0!