What should I do about this guy I keep thinking about & I like?

[Cupcake-Happiness]

I like him a lot & I just met him, it wasn't even planned. I was walking with my friends and one of my friends were friends with him & him was flirting with me like crazy even callling me his gf even though I know he was joking he kept touching me and holding my hang only touching my arm and leg and hands, he even picked me up like a married person getting married would. He made me smile a lot I havn'e smiled like that in forever. He made me feel amazing. HE followed me everywhere. The only thing is he never asked me for my number or facebook or anything & I figured out by my friend he was married and is about to get a divorce and is a really flirty person.. idk what to do...