"Then you're bluffing," Harry says. He's annoyed at the fact because it means Malfoy just said that to make him react that way. And that's frustrating. "But I'm surprised even you can pull off one like that. It must hurt you to say it."

Malfoy isn't as bad as he always made him out to be, that much is certain, but Harry can't easily forget the word Mudblood readily pouring through his mouth tonnes of times. Malfoy is no saint. Yes, he grew up that way and there is a certain extent of understanding he'll give him. But not too much of one, and not right now, when Malfoy is holding his knowledge over Harry's head.