A very melancholy and yet touching story. I really like the way you got into Harry's head, and the way he's sort of mirroring Snape as a teacher - lonely and a bit bitter, but mostly just lost like a ship in a storm trying to find a port. Makes me want to hug him.
Also, it's surprisingly mellow in the way it brings me down to a soft sadness at what his life has become. *paws at fic, then snuggles*