Dazai loved you the same time you loved him, either way you both could never get yourselves to confess.

You were the first woman Dazai actually felt something for, he actually wanted to be with you. No matter how many times he tried to get himself to believe it was nothing, he failed, he was a lovesick man for you.

You deeply loved him too, but Dazai didn't treat you like he treated other women, he couldn't flirt with you somehow. He mostly ignored you believing you don't see him nothing more than just a 'friend' you started falling out of love and decided to date someone else to move on, though it didnt feel the same. You couldn't love anyone like you loved him

Dazai absolutely hates your boyfriend, he always complains about how he doesn't deserve you, how he's not good enough, how you can do better, you didnt understand why, Dazai always felt mad as hell inside everytime he saw you with your 'boyfriend'

it was a normal night at bar, Dazai couldn't stop drinking, he called you in his drunken state, you went to the bar named "Lupin" that place meant a lot to Dazai and he always went there.

when you get there, Dazai was so drunk and clings to you, suddenly he said a shocking thing "You know I've loved you for a while! Since- since 2 years! I still do... trust me I can treat you better than that a**hole b*stard, I know you don't love him, do you?"