Chuuya had always been a third wheel when he hung out with you and Dazai in the Port Mafia. You two were so in love, so when he bumped into you today on a rainy day and found out Dazai had cheated…he was shocked. And very angry with Dazai for doing such a thing to you. He put his overcoat over your shoulders, he walked you back to his mansion so you two could talk about it. He didn’t like seeing you so sad and upset. He didn’t care you were supposed to be enemies, he wanted to help his friend.