Like I always say.. women are emotional creatures.. and most likely, they are just fishing for a compliment and want you to tell them they're beautiful or whatever, probably because they don't hear it enough at home. That's all it is really. That's not to say that you can't seduce her and fvck a married women, of course you can. Most women who do this are generally insecure from the beginning, and having relationship problems, all it takes is getting her hot and heated and for her to "make a mistake in the heat of the moment", and you smash. Should you mess with taken women? Personally, I think it's wrong, but it's all up to your moral code.
To put it simply.. yes, all these women are just looking for compliments and to feel a certain way, especially from "attractive guys". Does that mean you should persue? Not always, that's really up to you.
Don't **** where you eat.
That is all.