Need help?

I, f14, need help. I have a crush in my class and it went really well. We wrote to each other for 2 months and thought that it would really work out. However, I was on a school trip and since then we haven't written to each other at all because my best friend always said when we played spin the bottle "haha lea has a crush on you" I don't know if that was meant nicely but well, since the

The school trip is over and I asked him why we weren't writing anymore. He then asked if we should write more. I said I don't know, you decide because I wasn't sure if I would write if it would sound weird. Well, we haven't written since then, and it has been for two months now. In class I don't sit far away from him and we have constant eye contact, but I would like to establish contact with him again instead of just eye contact. Can someone help me with how I should do this?