"You asked how I knew that Harry was in love when he didn’t know himself?" Lily asked. "Well, he was ignorant to it because ... he didn’t know real love. He had never been loved in any way that he remembered, he didn’t know what it looked like. So he couldn’t recognise it when it was staring him right in the face ... with you. He assumed he had been loved as a baby, but that was as far as it went.