Questions: Flirting

My guy friend I'm crushing on finally got a smart phone and has been texting me. I wasn't in class Thursday and he texted me to see if I was okay and we talked for a couple of hours. Then Friday he texts me first again just to continue a conversation we'd been having at the end of class. Yesterday was Saturday and he knew I was going to be at a wedding with drinking going on and texts me to tell me he's doing laundry and also drinking. Then he tells me that "buzzed ----( his nickname for me) " is the best me. I know he thinks it's funny to text me when I'm drinking. Then we were being silly and talking about what drinks we like and don't and that lasted a couple of hours.

We're really good friends and know everything about each other's families, problems and we're as close as you can be and not be dating. We flirt a lot in person but he's always very respectful in his texts. He also uses lots of smileys, winky faces and exclamations but no xoxo's or hearts. We say "love you" in person or joke with each other when he says something raunchy I'll say he's horrible and I hate him and he'll say, no you don't, you love me. Or I'll ask to do me a favor and I'll love him forever and he'll say "you already do".

So he either knows or thinks I like him. Is he waiting for me to do something? Is he worried about messing up our friendship? Do guys think about these things?

I know he has tons of people to text while drunkenly doing laundry, so why is he texting me? We've never gotten drunk in person together but I kind of feel like I've already done a lot of things "virtually" with him since we've texted in bed, last thing at night and first thing in the morning and we'd ask each other how we'd slept, or if at all since this past summer we'd text until 3 and then start again at 9 am.

He's also very interested in my sex life lately and is curious about stuff I've done, what I'm into and he's always asking me if I'm doing things with guys and if I like it.