Ah, poor Ginny. She needs more love :). I've developed a bit of a soft spot for her - I think it's an internal backlash against reading far too much Ginny-bashing in H/D or Snarry. I'd far rather they just grew apart for various reasons. Or, heh, in the case of this story, that Snape (hey, it's already AU) and Draco get them out, Harry and Ginny break up because of failure to cope with aftermath, and she ends up with someone sweet, like Neville. Harry then goes after Snape and Draco, who are together, and it ends in a kinky threesome situation, because they provide just the edge of darkness he still needs.
And that's what happens.
~nods~