Unable to stand being treated by a child by Haru, Ren leaves the house. Natsuo agrees to let Ren stay over when he suddenly shows up at his apartment, but Haru shows up just as he's about to grant Ren's request to do something that he "can't tell Haru about." Haru tells  Ren to not come home ever again, but...?
I never thought you'd 
do something so stupid.
Hätte nie gedacht,
dass du etwas so Dummes tust.
Nunca pensé que harías
algo tan estúpido.
Nunca pensé que harías
algo tan estúpido.
J’aurais jamais cru 
que tu ferais une bêtise pareille.
Non avrei mai pensato che saresti arrivato
a fare una cosa così stupida.
Não achei que você faria algo tão idiota.