Is my relationship ruined ?

My boyfriend and I have/had been dating for 11months. ( He just turned 18 3 days ago , i'll be turning 18 next week ). Sooo , I used to be best friends with his best friend WAYY before we even started dating. I always knew that deep inside he had a crush on me , he was EXTREMELY cute , a lot of girls " Wanted" him , but his personality was always just to shy for me.His current friend who used to be my best friend dared me to talk with him or ask him on a date. I just did it for fun , and the only thing I liked about him was his looks. Long story short , my boyfriend found out that I didn't really like him in the beginning and it was just a dare. He REALLY cared about me from the start , and I clearly didn't at first. He had a crush on me sense about 10th grade ? & I was completely aware of it. About a month in the relationship I tremendously started to grow feelings with him. He was the first person I actually fell in love with & I was his first, so I clearly understands why he feels as he does now. He was sweet , caring , funny & not the person I thought he was at all. Once me and his best friend had a little falling out , he blabbered that the whole thing was a complete dare. It was NOT like I just completely used him for 11months , that would be ridiculous , I truly fell in love with him . Once he found out he was a complete mess , I haven't heard from him & i'm pretty sure he hates me . ( This happened 2ish days ago .) I tried explaining everything with him but he clearly doesn't wanna hear it . My closest girlfriends are H O R R I B L E at giving advice so I came here. What should I do or say so things can hopefully go back to how they used to be ?