Haruki hears about Kazusa's moving from her mother, who she hadn't been on good terms with.  He feels betrayed and angrily confronts her.  But his words force open the door to Kazusa's heart, which she had desperately tried to keep closed so that the three of them could stay together.
I never asked him to do that.
Ich habe ihn nie darum gebeten.
Nunca le pedí nada.
No le he pedido nada.
Je ne lui ai rien demandé.
Nunca pedi nada para ele.