You and Dazai had an okay relationship, it could be better. Without him flirting with all the woman..

You tried to not care about ur, since he did live you a lot, but you drew the line. He came home with a kiss mark on his neck and one which was smudged off his lips..

Then you two started arguing, you were tired of him going out late and coming home late with kiss marks in him, it was annoying, he said he loved you when he went out doing this!

"Why do you care so much!? I do a lot for you and you yell at me for going out!! It's like the only thing you let me do anyway!" Dazai yelled back at you, he knew what he was doing but that didn't stop him from arguing.