Koji saying "If I was looking at your face, I'd be looking at you differently" and Steve saying "Like with disdain?...on your shirt?" and proceeding to crack up at his own joke is so incredibly funny. I know Koji wasn't being serious, but as someone who also can't stop joking around, ever, Steve resonates with me.
"Abby" is real lol, it's just an ongoing joke that she's not because Steve's never seen her, but she's been on Koji's stream before (she put the cat makeup on Koji like 2-3 hours during THIS stream) and you can see her on Koji's Instagram story whenever they go out to eat, she just always conveniently can't be shown whenever Steve's around :)