Help??????????????????????????…?

i used to have a childhood friend,we hung out all the time,i was always at his house and his family liked me and everything. and since then we have remained friends off and on. Well 3 years ago he told me i could tell him anything and he told me he trusted me,well i told him i liked him and he said he like me too and since then he hasn't talked to me.....First Love , puppy love or coincidence or What.....