Ah, it IS interesting that you prefer that Harry knew...for myself, I think Harry didn't know, because I can see in my mind Harry reacting, and I'm not sure he'd be able to cope with it so well. But I do think that all interpretations are entirely fair, and that such a situation--where Harry knows but decides to let it go--is the perfect angst. I'd done a H/D fic with that kind of scenario--I think a Snarry pairing would have it play out rather differently, though. ♥