You and Itadori had been dating for a few months.

At that moment he was angry with you for talking to a certain boy in a rather affectionate way.

Itadori simply didn't want to talk to you, because he wanted to calm down his jealousy, but at the same time he wanted to talk to you and ask for explanations about the way you talked to that boy.

At that moment, Itadori was in a complete dilemma as he saw you on his bed, looking at your cell phone without worries.