Harima now faced reality, right? That's the time he knows he had no chance for Tenma.
In Yakumo's chapter; she already accepted that her affections won't come back to her from Harima. So she already accepted defeat.
But for Eri's side, well. Who knows?! Hahaha! It's going all out this time!
I really laughed out the whole chapter! I love this!