<human>: Can you condense the text into a few key points?

Okay so in brief...

• He has a girlfriend who he started dating relatively recently. They are almost never seen together. When in the same place at the same time, they don't interact a lot. She's told me that he takes things "really slow, a little too slow for her". Hm.

• He's all about that physical contact with me. *Very* huggy. **Very** always getting his arm around me and telling me how awesome we are. Hm. This kid is super stoked on me for whatever reason, but, like, too stoked. I'm not *that* cool.

• He hit me up the other day asking if I wanted to crash at his place and then take mushrooms with him the next morning, and was like really gung-ho on the idea. Not sure how to shoot this guy down, I kinda blew him off. I would have liked to have been honest about it - anything from "Doing psychedelics 1 on 1 with someone is a very intimate thing for me and I don't know you that well yet" to "I think you're gay and you don't know it" would have sufficed, but... awkward, y'know?

• So after that, next time I saw him at a social setting, I walked up to him to explain why I bailed the other day, and the kid stonewalled me. Wouldn't acknowledge that I was there, wouldn't look me in the eye. It was super uncomfortable. I left. What sucks is that we have a LOT of mutual friends who go do stuff together, and now I feel like I've somehow personally offended him. Yeesh.

There's like other bits and pieces not really worth throwing in, but yeah, dude was trying to spend a LOT of time with me before I apparently offended him.

How do I handle this? Idk if I've ever had to deal with a guy who seems to have a *romantic* attraction to me, let alone one who doesn't seem like he's in any position to admit it.
<bot>: new friend is probably gay, probably doesn't know it, probably into me, I don't know how to address it.