She finds that she does all that she is for his sake. She perhaps has disillusioned herself into loving a person or realizing that she was in love with them after they are dead. She does not know which it is. But Harry, he was too good for the world. So kind, so selfless and Dumbledore had fed him to wolves. Given him to be slaughtered. Just as he had tried to do to her when he learned that she had on a fundamental level agreed with some of Grindelwald's ideas.