August takes this opportunity to fuckin' sprint past him, knocking Kat off balance and giving him more time to escape
This knock off-balance caused Kat to fall back, and he crashed right back down the stairs, falling to his doom
August: Shit! Katsumi...
He stopped briefly and looked back
"Ugh...h-heh...August...mi a-mor...come back.."
You couldn't see it, but he was bleeding from the back of his head
August: ...
He hesitantly comes back down the stairs, biting his lip. Despite everything, he wants Kat to be ok.
"You lo-love meee?"
He sits down and gently puts Kat's head in his lap, checking for injury and stroking his hair at the same time
August: ...Despite everything...despite the things you've done...yes, I still love you...
"Kaz gonz com here...he gonz kill yu...hehe..."
August: ...Do you...want him to do that?
"Yur a lil bitch..."
He rolled over and crawled up the stairs