I got home last Friday to spend a week back home at my parents house. I went out Friday with a friend and Saturday went out solo. Both nights I went to the same bar and both nights I ended up bringing a girl back to my parents house to have some fun.

Unfortunately, after having a good time both nights, I spent 30 minutes listening to each girl cry about how she is a whore because, surprise, both girls had long term boyfriends who they did not go out with that night. This then reminded me that my last four sexual encounters have been with women who had significant others.

I feel kind of bad about this, because I know if my significant other ever cheated on me, the relationship would be over and I'd be seeking revenge on the guy who got with her.

It seems that I've only had luck with women in long term relationships, who were on the verge of moving in with their SO, lately.

I'd rather be getting with single girls, but have just been shut down by every girl I've talked to who was single. Can anyone shed some insight as to why I seem to be threatening relationships here and am only able to find success with girls who are already seeing someone (and have been for at least a year in all cases)?