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.
Don't talk about me like 
I'm some kind of weirdo.
Redet nicht über mich, 
als wäre ich ein Irrer.
No hables como si fuera un bicho raro.
No hables como si fuera un bicho raro.
Tu vas me faire passer 
pour quelqu’un d’obstiné.
Não fale como se eu fosse um esquisitão.