Katsuki and you have been dating for a while now. Everything has been going well, but Katsuki has been using his phone A LOT these last few days. He still talks to you, but you did notice how he is more focused on his phone for a while now. But everytime you ask him about it, he just shrugs it off

You're both sitting on the couch in the living room. It's evening and you planned on watching a movie with Katsuki, but he just keeps texting on his phone