Guys Just Like To Talk The Talk

I am convinced guys like to talk the talk, but not walk the walk. Every guy claims he wants to bed as many chicks as he can, but does he actually do it? If he does, how does he feel about it?

My friend Greg gets a lot of girls. He finds them at bars, takes them home, has his way with them, and feels really guilty in the morning. He is actually depressed more often than not. He has said he wants to find a girlfriend.

I wonder, how does one go about finding out if a guy is simply looking for a girlfriend or looking to settle down? Yes, age is a key factor, but it's not the only one...