Being a Dad really sucks, too--I'm unemployed at 52 at what should be the height of my career when my kids really need someone who is making money so help pay for college tuition and my wife has cancer, so save it how rough breast feeding is when breast feeding only last about a year or so anyways.
I'm sorry you're going through that. I don't mean to discount the man's issues with modern dating. We are trying to do our best, but its still really hard.
Good news is if your income is still low by the time they head to college, depending on the state, in-state tuition to a state college will be reasonable or free.
If your income is higher by then, it'll probably be ok.