Yep. He also seems to be witholding his emotional involvement with these women. He is, in fact, using them, unless he tells them up front he just needs a buddy to go the ball game with. People date, ordinarily, to find mates.
If he's lonely, he should get a dog.
He's probably doing the first base, second base and third base thing with them, but saving the home run for marriage. I can respect his behavior and discipline.