A little background info: I (23F) have been in this relationship for more than 3 years and I love him with all my heart (M25). He is very smart, loving, and craves social jnteraction much more than I do. Last year, he applied for master's in Canada which is half a planet away from me. I plan to apply but with all the processes it will take about 2 years for me to get there. My boyfriend was a very extrovert and sociable guy back in his homeland. Now, due to new environment, he feels very isolated and I clearly see all signs of depression in him. He no longer enjoys things he used to, no joy for the future and even talking to me doesn't help him anymore. Honestly, I run out of words when he tells me about how he feels.
There are some guys who live near him which are from the same country as him. But he can't even mingle with them 'cause they all got their girlfriends and go partying without ever inviting him.
So now, my boyfriend who was very well-liked and sociable in his own country, is very isolated and depressed in the new country. Worst of all, he says that even *I* don't cheer him up anymore. He says he only needs social connections and hugs, and I'm not there to provide.
I feel very helpless. Even when I try to offer solutions he says he doesn't want to hear any. I tried things like watching movies at the same time to feel some connection, didn't work. I ask him to talk and he only says a few words. And for christmas time, I guess the university's councelling must be closed for now.
I know this might sound trivial compared to many of the problems stated in this sub, but I would really appreciate if you could offer me advices. Thanks

Edit: I created this account to post this, because he sometimes checks my main account.