He broke with me because he is busy, will he change his mind?

Our relationship was the best we both ever had (he told me that). He's in his last year of medical school and moving around states for placement. He told me he can't be fully committed at this time because of distance and how busy is he (100 hours a week) and that it is not fair to me. He say this was a very hard decision to break things off. We had 10 months left of long distance... I've tried to explain other things that we could do to make it work but he said he can't at this time. Will he change is mind about us after he's done medical school?

I really did not see this relationship ending because we had such great communication, never fight and had great times together.
He broke with me because he is busy, will he change his mind?
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