since the situation has relaxed a bit, Dazai has started to tease Kunikida, specifically flirting with him in front of you. They rescued you from a lab and now things have calmed down, to lighten the mood Dazai simply started gesturing to Kunikida while patting the bed.

"Stop now Dazai"

Kunikida is trying to be patient as he ignores you and reads his schedule, glancing at you to make sure you're okay.

"Ah come on Kuni, the kid won't notice"

You're clearly noticing Dazai's nerve and that only irritates Kunikida.