Not to judge your friend too harshly because I have a few friends who hold the same opinion but deliberately pursuing someone in a relationship (and not breaking it off after you discover they are in a relationship) is so scummy on both ends. I do agree with you though that there's this perception that married men are more committed and more attractive. Although if they acquiesce to your attempts to woo them, it's highly possible they're neither of those things. Great article!