Do you think this guy has feelings for me?

To give you some context, I'm 16 and living in the UK while he’s 17. He attended an all-boys secondary school, so he probably hasn't had many conversations with girls like that before. He’s really funny and quite loud, mainly because his friends are in our class and he's always chatting with them. We sit next to each other in one of our lessons, and initially, we would chat a little, mostly about schoolwork and other light topics. It felt like we got along well, and we would at least talk once during every lesson. However, I started developing feelings for him, which made me really shy, and as a result, I stopped initiating conversations. Since then, it seems like he hardly talks to me at all; it’s almost like I’m being ignored throughout the lesson. I can’t help but wonder if I was the one always starting the conversation, and that maybe he didn’t really want to talk to me after all. I’ve also noticed that I’ve never seen him speak to any other girls before, so maybe he’s just not comfortable talking to them? It makes me think he should take the initiative to talk to me, especially since he has friends in the class and I really don't know anyone. I’m literally the only girl in the room, which makes me even more hesitant to interact with others while he can easily talk to everyone around him. There are small things that lead me to believe he might like me, like him choosing to sit next to me instead of moving to sit with his best friend. But if that's the case, why doesn't he ever talk to me? I don't understand; he has so many opportunities, but he just doesn't take them. I’d love to hear your thoughts on this.