One time he invited you to play an online game together but you didn't reply to his message because you were busy playing with your other friends

After he finds out about that, he frowns and doesn't want to talk to you, even when you send a message he just reads it doesn't answer, you call him he doesn't pick up, and focuses on his own game, You start to get annoyed, then go to Nagi's house, and break down her bedroom door