Makes total sense. You knew it would come, but you didn't want to believe it. I always imagined him going out in a blaze of glory, but who is to say that Dumbledore did not forsee all of this? How do we know that he did not intend for Snape to spare Draco and kill him? Harry needs to know total hatred to want others dead for him to have a chance against Voldiepoo. Hating Snape and Voldie could do it.
I can't say that I loved it. I enjoyed it, but not loved it.
The story was, as I've come to expect, original but in truth I have read stories on Fanfiction.net with about the same standard of writing ability. Not taking anything away from J.K. Rowling but I fell that the third and forth books were better.
"there's only one way to win a war: shout, shout, and shout again!" - The Duke of Wellington ((Blackadder - Stephen Fry))