My boyfriend wants to move to another country. Should this be a deal breaker?

Hey, I am 20 years old and my boyfriend of about 5 years is wanting to move to Japan after he finishes college. If he did go to Japan it would be in about two years. He wants to get an editing job and says that all the good editing jobs for comic book companies are in Japan. I have no idea if this is true or not.. lol I knew that he really liked Japanese food, music, anime, culture and that he was looking into what editing jobs are available, but Japan? And yesterday we were having a serious conversation and he asked,"You know I am serious about the whole moving to Japan thing, right? That's where I see myself living eventually." I don't see how he can know this. Yes he likes Japanese culture but he does not speak Japanese yet and has never visited Japan. Basically my question is, do you think this is some kind of phase that he will change his mind on? I don't want to move to Japan because I don't speak Japanese and if I did move there I don't know if the degree I'm going to get (in allied health) would work there. Should I give this whole Japan thing some time or just straight out say no? I don't want to discourage him from what he wants to do in life.
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Haha..sorry. I should have mentioned he wants me to move to Japan.
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Just to clarify... I am NOT going to move to Japan. My main question is whether or not this is a deal breaker for you or would you think this is just a phase?
My boyfriend wants to move to another country. Should this be a deal breaker?
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