Hmm, I know this piece is aimed at the women, but what about the man? If he is in a SERIOUS relationship(marriage, fiance, etc.) he should be man enough to resist and walk away!
It seems to me that the author, insteading of checking her man, is instead blaming the other woman.
If I know someone is in a relationship, I simply leave them alone and move on. IMHO, I don't think it matters if the relationship is a marriage, boyfriend/girlfriend type, or whatever.
I'm too spoiled to be someone's sloppy seconds
