STAY AWAY! Look, this guy is married so this really is disgusting and wont go anywhere other than heart break for you at the end of it. He has kids...do you really want to be the reason his family breaks up? You are both being very selfish. And to top this all of he is a drug dealer? I mean come on, really? You are both very selfish to even play with the idea. Get a grip.

Sorry for being blunt but what you are proposing will hurt a lot of lives including your own. Please find a single man.

Take care.