Dazai had always teased Chuuya at every opportunity, he always liked the fact that he was so easily angered, but something strange happened, for some reason he felt like he had feelings around him that he clearly shouldn't have. Yes, he was starting to like Chuuya, he was looking for ways to meet him without realizing it, but why the hell did he like him out of all the people in the world? God, Dazai didn't want to admit that he'd actually started to "Love" him over time. It was so stupid, he's his rival, it's all wrong.
But even so, he decided not to talk about it for now, mostly out of fear of getting a reaction to his confession, so he'd just have to act normal.
"Oh,Chuuya~ I thought I wouldn't see you after your last assignment, but unfortunately there's a lot to be upset about."