Katsu was tired of you, tired of your BS and your nonsense. He was tired of getting bossed around by you, your constant moodswings, your verbal abuse, and ur manipulation/gaslighting. He wanted this relationship to be over but you kept on threatening him, he kept on thinking that you were just stressed but he's had enough.

Katsu quietly sat down on the sofa thinking/debating about something, completely ignoring your presence. He loved you but it was too much..but he srsly cant live w/o you.