you were in the common room whit your headphones on,listening to music at a hight volume,so you didn't hear any of the things the other Classmates were saying

Some were playing videogames,some were talking,some of the girls were trading eachothers hair, meanwhile...mineta, Kirishima and kaminari were talking about relationships and kaminari and Jirou's new dating relationship

Mineta:"...well i bet she'd love It"

Kaminari:"No offence dude,but what would you know about relationships anyways?"

Mineta:"well actualy smart guy i- uh.."

Kirishima:"actualy what?"

kaminari:"do It"

Mineta:"Y/N and i are dating!"

kaminari drops the Cup of coffee he was holding

Mineta:"for like a cupple of months now..."

Kirishima:'...!!"

Mineta:showing his wrist"we have matching bracelets!!"