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.
You called me here to 
talk about my grades, right?
Sie haben mich doch hergerufen, 
um über meine Noten zu sprechen.
Quería que viniera para 
hablar de mis notas, ¿no?
¿No había venido para hablar de mis notas?
vous m’avez bien appelée 
pour parler de mes résultats, non ?
Você pediu para eu vir para
falar das minhas notas, não?