Its been a week since you two have been roommates btw

Katsuki flopped onto his bed, pissed and grumpy. He murmured something as his face was buried into his pillow. You could make out the words "Fuck. Deku. Idiot. Dumbass." Katsuki sighed and turned around so he was now facing the ceiling. He grabbed his phone and started using it. He texted someone, aggressively.