Straight guy experimenting or playing around?

Alright for some back story,

I'm a relatively shy, slightly effeminate dude, I usually keep to myself. I have culinary classes on Mondays and I met this guy, let's call him F. F is literally the opposite of me, masculine 6'4 muscly monster that towers over me, learned relatively quickly from being around F that he is incredibly out going and dove head first into chatting to me from the moment he met me despite how intimidating I found him.

Fast forward a week, I'm shitting bricks even talking to him but got partnered with him, start talking about where we are from ect, learn he's from the country. Eventually he gets to asking me about if I have a girlfriend, I tell him I'm gay in response and his face just lights up. Starts talking about how he's never met a gay person before and starts asking me questions about how I knew, if I have a boyfriend blah blah. He asked so many questions that he eventually learned that I find him quite attractive.

Over the next few weeks every Monday, we talk more about one another and he starts asking me more well explicit questions out of the blue. He asks about every single gay sexually explicit act under the sun just intrigued by it, ask if I enjoy it which at this point im already exhausted from answering these questions and embarrassed, tell him yes. (stupid question to ask but whatever). My take away from it was that he was just a curious guy, nothing more.

Week after that he started getting touchy? Randomly putting his hand on my shoulder, punching my arms ect just horsing around giving me a smirk, guys being guys right nothing more? And then it just happened, he walks up to me while I'm washing up, kinda traps me between him and the counter and just gently lays his hand on my cheek, caressing it, I'm frozen like a statue due to me being caught so off guard, he does that for a few seconds and walks back to what he was doing before, loops back around and asks if I have been fancying any guys recently like nothing ever happened.

Obviously I start overthinking every interaction I have ever had with this man, was I being naive thinking he just liked asking questions? Was he flirting the whole time or is he just mucking around? I don't know what to think of it, nor do I know how to handle it going forward.