"The real mistake was made by you, the day you decided to go out with my son. I knew how it would end from the moment I met you at Hogwarts. I saw in you all the virtues of a good girl, and I could not bear for Scorpius to make you suffer. You didn't deserve to be fooled. You deserved someone who was more suited to you and the sweet girl you are. I didn't know you would become one of the causes of his death and for that, I hated you, it's true, but I know you are not responsible for what others do. I'm afraid I'm responsible for what happened to you. I didn't do enough to stop it."