What am I supposed to do?!

well try to find out if hes married or some thing without looking suspicios

Either way on your situation you'll want to even wait 2 years to do anything otherwise he could probably get charged for pedophilia.

As for your worry on whether he's married or has a kid...not all older people are married or have a child for starters. One way is to see if he has a wedding ring on, but even if he doesn't he may already have a girlfriend. Just talk to him and find out stuff about him because if you don't know those 2 facts yet then you're more than likely just physically attracted to him.

Before you start flirting, you need to find out about his personal life. If he is married, flirting could land you in serious trouble. At the same time if he isn't, you need to know as many things that you can about this guy. If you don't know him, it could cause problems because of the age difference. If all of these points are alright, then go ahead and flirt. Unfortunately, I don't quite know how to do that. Sorry....