Dazai wouldn’t normally consider himself .. jealous, but when it came to you? He was like an entirely different person. He wanted you, and only he could have you.

Which is why he got so frustrated and overly protective when Kunikida and you were being a little more friendly together, so he simply decided to intervene.

He got up from slacking off at his desk, and walked over to you, draping an arm around your shoulders and glaring at Kunikida. “Hey guys! What are we talking about?~”