Deku and Bakugo have to often hang out with each other..because of their mothers being close friends (Inko Midoryia and Mitsuki Bakugo). But on the other side, Izuku and Katcuki don't go together at all. Despite the fact Katcuki bullies him. They just keep it a secret

It's about noon, Katsuki was downstairs with the others but his mother forced him to call out for you since you weren't coming, as he already reached your room he simply entered and didn't knock on it or anything other, he could put his hands on his pocket, not saying anything looking around for you then taking some steps closer.

"Deku! Come downstairs now."