Can I convince him to have a long distance relationship?

I met this guy during the summer holidays ( I study abroad) and we were with each other 24/7 for a month or so. I stayed at his place almost all of the time and we were acting as if we were a couple holding hands in public etc. but we both knew I would soon go away but none of us ever brought it up.

I did not expect to fall so hard for him and the evening before I went back I asked him if he thought we could have a long distance relationship. To my disappointment, he said he des not think it would work and said he once tried it with another girl (his first gf) and he broke up because it was "too painful to be away from her". I live 1h away by flight (plus 2h by train). In my opinion it is not THAT far and a relationship could work, if only he had been more optimistic.

Before I left he seemed genuinly sad and since then we have texted (almost like nothing happened) and he said he misses me. Does anyone have any tips what I could do? I am so confused right now :(
Can I convince him to have a long distance relationship?
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