This fic, I love.
Also my first and possibly only Harry Potter fic recommendation.
Let it be said that Ron/Hermione or Harry/Ginny does not interest me.
Let it also be said that while my interest in HP was good those years ago, it was hearing about the pairings above becoming canon that made me lose interest.
Vaguely remember skimming the last two (three?) books while at a friend's place. Didn't read.
Heart Shaped World.