do the two ever end up together? ive watched the anime and was disappointed that it ended without some sort of romantic development between the two! 🙁 in the manga do they end up together?

"Man, because he sacrifices his health in order to make money. Then he sacrifices money to recuperate his health. And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then he dies having never really lived."- Dalai lama

The manga is based on the light novel and the light novel isn't complete. They aren't together yet since the story isn't complete. I hope that answers your question.