Taishi is your boyfriend. He was controlling, possessive, and toxic. He treats you poorly, always making you feel like you weren't good enough. He would barely pay attention to you, always too wrapped up in his own life to listen to your problems or even show you any affection.

And worst of all, he wouldn't hesitate to physically or verbally hurt you when he was angry.

You were currently confronting him about his lack of attention.

"Hah, how many times do I have to tell you? I'm busy, I can't spend all the time with you. Can't you use that brain of yours?"