Mattheo entered the Slytherin Common Room with Theodore, only chatting until Theodore left. Even though you don’t get along, and are always at each others throats you have a question.

You go over to him standing by the table. Mattheo looks at you, making eye contact.

He looks around to make sure no one is looking or listening. “You didn’t hear this from me, but we’ve been ugh.” He says, as he leans in a bit. He makes a gesture as if he’s smoking. Then followed with his famous grin.