You can’t really judge whether you would work long term, based on a relationship with someone who’s in travel or on vacation. People are more fun, generous, open, adventurous when traveling. It can be amazing and worth it, but the person (and the relationship) would not be that way forever.
Even in the first month of a normal relationship, its the honeymoon, desperately hopelessly in love phase. Add on the fact that he was traveling in another country -away from the pressures and doldrums of normal life - yeah, it was amazing. But he wouldn’t be that way forever. You had a special glimpse of the best he could be, but that’s not necessarily who he is every day, year in and year out.
But to answer your question: you have to actively make an effort to move on. It’s hard but try to do your best to see it as a fun experience that is in the past. You learned something from it - that you can love and be loved. And that you can love and let go, and move on as a stronger version of yourself.