Robert Galbraith said this quote

He had called what he felt for Charlotte love and it remained the most profound feeling he had had for any woman. In the pain it had caused him and its lasting after-effects it had more resembled a virus that, even now, he was not He had called what he felt for Charlotte love and it remained the most profound feeling he had had for any woman. In the pain it had caused him and its lasting after-effects it had more resembled a virus that, even now, he was not.