Oh, yes, I also had my own vacation (holidays) romances, but that was a long time ago. They could be very intense, indeed. But that was a time when there was no Internet at all and the telephone was rather too expensive to use every day for long-distance calls. The only viable contact you could make was by ordinary (snail) mail. You are much more fortunate now: you are able to have quick responses. You can even do without patience, to a certain extent.
Anyway, I want to congratulate you for having found someone so special, for having those beautiful feelings for him (they don't need to have a definite name for the time being), and for their being reciprocated by him. That is lucky of you, despite the distance. Very many people are breaking up or still longing to find someone special. You read about these things on this very board. You may not have him as near as you would like to, but you still have a contact with him and (so far) only good memories. Cherish them, but what the future holds for you, only the future itself knows, and it will let you know only when the time comes. There is a Chinese saying like this: A person, whose fate is to meet their fortune, should not hurry to be happy.
I don't know if this translation makes sense to you, but the moral is to take your time, to live each moment of your life as if it were the most important one and not to worry too much about what will come next. It is not in your hands, after all.
Unless you are already engaged to him, be open to new relationships and new experiences. I am sure he will also feel and act this way.