I distinctly remember that this fic was a companion to another piece but that they were not written by the same person. I'm not sure which of the fics I'm describing (companion or original), but I figure that if I can find one, I can find the other. Also I think that one fic was from Kurt's POV and the other was from Blaine's.
The main plot points that I can remember are that Kurt was injured somehow, and that he lost his memory as a result of it. He doesn't remember Blaine, and when he comes to visit Kurt in the hospital, Blaine leaves before seeing him because he thinks it's better if Kurt can move on without him (or some other equally noble reason). I remember that Blaine meets Kurt again at a coffee shop and they fall in love and that Kurt eventually remembers him.
(And no, the fic I'm looking for is not Roses in December ;))
Thanks for any help, I hope my tagging was alright!