My bestfrnd is ignoring me he liked me alot now he is so changed why he is changed?

we are friends but very far away in tow different countrys he loves me care for me n i do the same i told him many times that plz i am not with u n i cant be in future so dnt think that much about me but he says we are far but stil near after few months he is very changed i dnt know how to describe he says we cant meet i cant call u i like u alot but i am staying out of contact becoz i dnt want to flirt with you he is a very honest guy we are netfrnds but more close then reals i belive he stop using his id staying out of contact not calling me not picking my calls n hurting me i dnt want to lose him i am feeling dead inside wat sud i do i am a girl n he is a guy people say ignore him he wil come to u i am scared wil he? plz help i am very emotinal