It's a tough time to be a big story in anime.
Hinohara really let his rage out for the first time. If Kadowaki is driven by anger, Hinohara has been driven by fear. He's suffered from the high-school equivalent of combat fatigue, basically becoming a hikikomori because of what Kadowaki and his henchmen did to him. If he unwittingly made Kadowaki feel powerless, Kadowaki quite intentionally did it to him - and finally, with a powerful weapon in his hand, he has a way to stand up to him if only he can believe in himself long enough. Alas, this leads to the "demonizing" of Tsukuyo (and at last the arrival of Okamoto Nobuhiko in his more traditional voice) - a process that's already happened with Orochi, making Kadowaki the perfect wielder - and only Kotoha's intervention keeps Hinohara from losing himself to the darkness altogether.
try and drive the boy out of his funk. This is the crux of Hinohara's character, really - he's always his own worst enemy, and too nice for his own good. With the truth of his identity now no longer a secret from Kotoha, she too faces a choice about what's important to her, and how much she's willing to sacrifice for a person she now realizes she's only known for a few weeks.