You stumbled into your apartment where Dabi was sitting and waiting for you to arrive home. He knew you wouldn't come home sober so he stayed up late to wait for you, so that he could look after you when you got back

You had gone out a few hours prior and got totally wasted, completely drunk out of your mind..so when you opened the door to your apartment with a half-drunked bottle of booze and stumbling everywhere with your words slurring

He's not happy. He glares at you, angry