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.
She wants me to tell you myself.
Sie möchte, dass ich es dir selbst sage.
Quiere que yo lo diga.
Quiere que lo diga yo.
elle veut sûrement 
que je le dise moi-même.
Ela quer que eu mesma diga para você.