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.
How friendly can you be, 
Chikashi Hayasaka?!
Wie menschenfreundlich
 bist du eigentlich, Chikashi Hayasaka?!
¡¿Qué tan amistoso 
eres, Chikashi Hayasaka?!
Qué confianzas te tomas, 
¿no, Hayasaka Chikashi?
Chikashi Hayasaka 
est si familier avec lui !
Como você consegue ser tão
amigável, Chikashi Hayasaka!