It's happened to nearly every woman in the world of dating. He told you he'd call, but he didn't.
He had to suddenly cancel plans because his mother/sister/guinea pig got ill.
Things seemed to be going so well with this really special guy, but all of a sudden, he fell off the face of the planet.
Why is the way men act so confusing, leading women to spend hours hashing out what it all means?
According to authors Greg Behrendt and Liz Tuccillo, it all comes down to one simple fact: he's just not that into you.
On Wednesday's The Early Show, they talk about their smash success book, and impart some of their pearls of wisdom to single women around the world.