Sadly, I am NOT a man, and am not of that age yet, so I suppose I'll just come in here and speak just for the sake of speaking.
Skimming over your post (I am a deep multi-tasker, don't mind me. Don't take it personally.), I think the guy is not someone I would go after.
Of course, I am a ... virgin, and plan to never marry or lose that virginity. And, of course, forums are opinionated and there are many who have different views on different things, so here is the Incognito Teenager's virgin thoughts:
He's married. In all the relationships I know, in order to not die, get kidnapped, or lose your mind, you get with a single man. Usually, if the married man is hitting on you, the single? woman, he is unhappy with his marriage, or his wife isn't pleasing. And, for that reason, it's very dangerous in your social status. My suggestion is, don't. There are many more unmarried fish in the ocean, and that is where I'd target, if you are that kind of person.
On another note, which is partially related to the first paragraph, you are used. He will only use you for temporary pleasure, so I wouldn't, as it would hurt my pride.
Sorry if I did not make sense at times, but like just any other internet-related writing I do, I make it up on the spot.
This is just my thoughts on this topic, and I hope no one takes it personally or gets offended.