Actually, I think it may just have been his insensitive way of making conversation. Maybe the women in his life make such things so much a part of their conversation with him that the only way he knows to talk to a woman is on a(n inappropriately) personal level. Or maybe his idea of how to converse was gained from Jerry Springer and such shows, where people "sell their psyches for a little attention".
"This is totally unfair! Just because I'm from another planet, I don't have rights? I mean, doesn't the Geneva convention protect extraterrestrials?" (Stargate)