Dazai being so excited to propose to Chuuya and since Dazai can never keep his mouth shut when he’s thinking about something accidentally ruins the surprise by telling Chuuya about it beforehand when he can’t keep it secret anymore since he always tells Chuuya EVERYTHING he couldn’t stand Chuuya not knowing even one thing (having very Skk thoughts right now) ((I really hope that made sense I’m really bad at writing my thoughts))