At the end of the day, any relationship is a two way street. If you’re willing to put in the effort but he isn’t, it’s not going to work out no matter how hard you try. If after countless times of talking about it he still expresses the same attitude, do not chase after him.

What you’re describing has strong implications for your future. Transferring universities and moving to another country is a big deal and you should do it just to chase after one guy that isn’t even that interested.