He could not explain what it was that had so moved him; he was sorry for her and felt that he could not help her, because he knew that he was the cause of her trouble, that he had done wrong.
No podía decir qué era concretamente lo que le había conmovido. Sentía lástima de Ana, sabía que no podía ayudarla y a la vez reconocía que él era la causa de su desgracia y que había procedido mal.