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.
That you're moving to Europe.
Dass du nach Europa ziehst.
Que te mudarás a Europa.
Que te mudarás a Europa.
En Europe !
Que você vai para a Europa.