He suddenly changed. what should I do?

[summerstillhere]

we are still in a new relationship. we know each other since earlier this year as just friends. and we started dating in may. and he left to his hometown in may.
probably we didnt spend a lot of time together?

[summerstillhere]

thanks everyone for your reply.
so I emailed him yesterday for why he behaving that way. so this morning I got the reply.
he said he's trying to get some distance. (well we are already in loooong distance anyway).
maybe the whole thing is just too complicated for him. i dont know.
but whatever it is i'm gonna gv him the distance he needs. forever.