Mixed signals

Makayla
I like this boy that goes to my school and he is the smartest in all of them. I find him highly attractive and very funny. We used I be best buddies 
and now that he knows I like him he completely avoids me. I told him I don't like him anymore because I don't know if I really do and he started acting disappointed. Yet he said he doesn't like me. I am soooo confused. What do I do?