Pls help me I have a crush on this boy

Hi! So this boy I have a crush on at school added me on snap chat from my Insta bio but then unfollowed me on Instagram last year. He snapped me contantly and I would always reply quick and he would match my energy. He would also send me shirtless pics but I would be too nervous to text anything bcs I saw him every day at school and I’m shy. He would also send me videos of his music and I would send my favourite songs back of how I felt for him. However we never texted or spoke in real life. In my class that he was in my friends started talking really loudly that this other boy that wasn’t from school liked me and was chatting to me which he was, but I only liked him as a friend. Then my crush had a fling with another girl for only three days and I was upset so I started leaving him on opened on snap then replying a little later to show I was mad. He also did the same back to me. Then he just blocked me on snap chat randomly and now we don’t have each other on any socials. I was really confused as to why he blocked me as we had never spoken and only exchanged flirty snaps. We still go to school together now and I can’t help but still have a little crush on him bcs he’s in lots of my classes and hope he likes me. But we still haven’t talked. pls can someone tell me what to do!?