Or maybe because it's so NAUGHTY!!!
I think it's a power trip for some types to think they got someones husband to be unfaithful.
Overall....I don't think that woman who screw married men like other woman very much.
It's like "What do I care, she doesn't count."
On the whole, the woman who engages in that kind of casual/semi-casual sex doesn't consider the wife any kind of real obstacle precisely BECAUSE she's never been bitch slapped.
You get bitch slapped really good a couple times, you start to reconsider he's not worth it.....DAMN, that old woman hits HARD!!!