Gigi Levangie Grazer is an expert on divorce, the hard way. The twice-divorced author of The Starter Wife and the screenplay of Stepmom has a fine piece of hard-won wisdom in the Huffington Post. I can't write with this kind of authority.
My favorite nugget is this:
When you do go out with someone (after the kids go to bed), you size them up not only against your standards, but the standards of your children. You're not the only one going out on that date -- your seven-year-old is right there with you, with his toothy grin. Your fourteen-year-old is scowling in the background. Your stoic ten-year-old has tears welling up in his eyes.
Frankly, other than superficial dating far away from your kids' eyes and ears, E.S.P. might be the only thing that makes sense for the single parent.