Tough question, what does it say about him that he's involved in a R with someone and flirts with you? Do you want to be the potatoes on the side?
Slow down, you have lots of work to do.
Maybe if he catches her, his W or long term GF will be the one on the side. They do that you know, keep the spouse or one who isn't going to leave as a long term plan B or C.
