I will take "uncomfortable" as a compliment, since I think that was what I was going for. And you know, I really did want a happier ending, but I just kept thinking about the Snape we meet in the books, and the Snape/"Moody" interactions in GoF, and I just couldn't bring myself to do it. Though the second I finished it, I started working on an old AU that has a happy ending because even I can only manage so much bleakness. ;-)
Thank you so much for taking the time to read it, and I'm glad you...well, maybe "enjoyed" isn't the right word, but you know what I mean.