Dazai was your boyfriend, he was a really nice guy,he was his cheesy him and you both always used cringy pick up lines on each other as a joke,as you were both students,he liked to give you school based pick up lines,that's when he sits next to you in math class

"Hey love! You remind me of geometry because you look good in every angle."

He says while having his usual signature smirk on his face as he grabs your arm