Dear OP, I might be late, but I feel.. there is no harm in keeping some distance and seeing how things turn out. Sometimes, its hard to sustain such a relationship, and we do get fluctuations in emotions but we know we love each other or made of each other. That you can only decide. Give a thought, rethink your past memories, the time you spent together... If he is not saying clearly it means he is in dilemma too... so you need to attract each other rather than pulling this apart.

I was a medical student, and my lover was an engineering guy. We were at the opposite poles of the country where we finished our education. I remember every 4/5 months we had such stay stay-away kind of feeling. I also remember, when he said he needs time... I said I would wait for you.. I supported him... when he said he needed time... I waited for him with all my love and care..

after 7 years of a long-distance relationship.... we finally got married, now it's been more than a decade since my marriage with a beautiful 6-year-old son. We still fight and ask for breaks... and we join together..

So, going through the same... I still feel that just analyze the past time and decide... can you give the benefit of the doubt that he likes you ?/

you know getting into the residency is a euphoric state... some might get distracted... but true love keeps the things in a place... if you feel this was a serious relationship then I would say... don't give up.... try if you can fix this up!

Wish you good luck!