" no matter what answer that ohno will gives, it will always gives pain to him" why?? T○T why Ochan made it to Nin!!T^T

A few mimutes I was listening a Adel's song and like it remember a this song well the part when she sing
"Sometimes it lasts in love but sometimes it hurts instead” mm Best forget what I wrote, it's more Sad :( poor Ohmiya iie poor Nin!! T^T
Thank you for update!!