you and Deku were sitting on the couch watching TV together. When you suddenly noticed that Deku wasn't acting like his normal self. He wanted more "alone" time lately, he hasn't been hanging out with you often, he doesn't smile like he used to, and he's been feeling more sad than usual..

Deku: watching TV with an emotionless face with you sitting next to him

(you 2 are dating btw)