Holy hell! Reading this thread it's no wonder it seems like 90% of the guys on this board can't get a date most of the time! You guys really have a messed-up sense of what you think women want.
Gynecologist, if it's worked for you, it's only because you brought out the jealousy in the women. Yes, sometimes a woman will get angry when she sees her ex with another woman. That's natural. But it's not a good idea to toy with a woman you care about by hurting her and making her jealous. And it's certainly not a good idea to treat a woman like dirt after she leaves you because she's angry that you were treating her poorly.