Long story: What should I do??

I’m 16 and I think that I like someone, I mean properly for the first time, but this person I used to be very annoyed with. Anyway, where it all started was that I knew he had a crush on me and he has liked me for a couple years but last year I kissed him (it was his first kiss but not mine) but after that I just got very annoyed with him, I’m not too sure why, I just think that I wasn’t used to getting attention a lot or someone actually liking me, so I didn’t really talk to him for a long time until about a month ago I’ve been talking to him a lot, we only have 1 class together but I sit next to him and talk to him. Most weekends we talk on the phone and last night we spoke for 5 hours! He was really cute though because he said that he couldn’t get his smile off his face and not going to lie, I couldn’t either. But I used to tell my friends that he would be annoying me and everyone knew how bad he liked me and that I was just friendzoning him, but now I really think that I like him but if we do get together then I’m scared that everyone will think I’m mean for saying bad things about him but now liking him. I know that if I ask for advice then people might say that I should listen to my gut feelings but at the same time I don’t want my friends to think that I lied to them about finding him annoying. What should I do?