you and dazai have been bestfriends, yet the biggest ship in school... But dazai tries to denies this. One day, he was talking to one of his guy friends while you were behind them, about to scare him, when his friend said "you should say how you feel for her", dazai tried to deny it and said

"Everyone knows I love Olivia, not my bestfriend"

Dazai said, and you stood there, shocked and hurt, when dazai turned to you he was surprised he quickly ran to you

"No, what you've heard is mistaken"