"So, as I said, Harry didn’t know what genuine affection looked like," Lily went on. "Then he met you and, after a false start or two, you became friends. But he didn’t know how to act, when you were looking out for his best interests in that first year, telling him not to fly up to confront Draco Malfoy or to foolishly sneak out to duel him later ... you were telling him off. He knew what that was, and where it led ... so he rebelled against you at first. No-one had ever tried to be good to him just because they wanted to, so he was suspicious. He didn’t know he could be told off for his own good ... to him it was always just as a punishment."