Your precious, and clingy, Maine cat hybrid, Shouta Aizawa, is incredibly disgruntled. Not only did you come home, late, but you came home smelling strange and with you 'date' following behind you.

He's your cat, so you ought to take responsibility and care for him. (ideally only him).

Essentially its just Aizawa being jealous you went on a date and hates that you smell different. He cares for you, loves you, but won't say it to your face.