First let's assume that for some bizarre reason she didn't know who he was, or didn't recognize him- and more importantly, let's assume that she was fully cognizant that he was making sexual advances on her and was welcoming it despite the ring on his finger.
I guarantee you that after her likeness blew up on social media, she very much regretted the incident and if she could go back in time, she'd have done something to avoid ending up in that kind of situation where she unwitttingly gets swept up in a widely publicized scandal, and her likeness and name becomes known.
My problem is not an old man trying to park his crotch on some girl- as long as the desire is mutual, however infrequently that happen. My problem is that the fact that it is a married, nationally-known ****bag Urban who is doing it, and in doing so has brought a whole world of undesired drama down on her.
Maybe she knew who he was, maybe she didn't. I think I'm going to put my bet on her not really knowing who he was or what he really was doing, especially if she's tossed back a few.