“Bad news, Harry. I've just been to see Professor McGonagall about the Firebolt. She – er, got a bit shirty with me. Told me I'd got my priorities wrong. Seemed to think I cared more about winning the Cup than I do about staying alive. Just because I told her I didn't care if it threw you off, as long as you caught the Snitch first.”
“Fifty?” Harry gasped.“Fifty points each,” said Professor McGonagall, breathing heavily.“Professor — please —”“You can’t —”“Don’t tell me what I can and can’t do, Potter. I’ve never been more ashamed of Gryffindor students.”
“Ginny, listen...I can't be involved with you anymore. We've got to stop seeing each other. We can't be together.""It's for some stupid noble reason isn't it?""It's been like...like something out of someone else's life these last few weeks with you. But I can't...we can't...I've got to do things alone now. Voldemort uses people his enemies are close to. He's already used you as bait once, and that was just because you were my best friend's sister. Think how much danger you'll be in if we keep this up. He'll know, he'll find out. He'll try and get me through you.""What if I don't care?""I care. How do you think I'd feel if this was your funeral...and it was my fault...”
“I—I didn't think—""That," said Professor McGonagall, "is obvious.”
“Do you see, Harry? Do you see the flaw in my brilliant plan now? I had fallen into the trap I had foreseen, that I had told myself I could avoid, that I must avoid.”“I don’t —”“I cared about you too much,” said Dumbledore simply. “I cared more for your happiness than your knowing the truth, more for your peace of mind than my plan, more for your life than the lives that might be lost if the plan failed. In other words, I acted exactly as Voldemort expects we fools who love to act.“Is there a defense? I defy anyone who has watched you as I have — and I have watched you more closely than you can have imagined — not to want to save you more pain than you had already suffered. What did I care if numbers of nameless and faceless people and creatures were slaughtered in the vague future, if in the here and now you were alive, and well, and happy? I never dreamed that I would have such a person on my hands.”
“Yes, Harry, blessed as I am with extraordinary brainpower, I understood everything you told me. I think you might even consider the possibility that I understood more than you did.”
“Harry — I think I've just understood something! I've got to go to the library!”And she sprinted away, up the stairs.“What does she understand?” said Harry distractedly, still looking around, trying to tell where the voice had come from.“Loads more than I do,” said Ron, shaking his head.“But why’s she got to go to the library?”“Because that’s what Hermione does,” said Ron, shrugging. “When in doubt, go to the library.”