The moment the duke went to the room personally I knew Hexion would casually follow him. Like wtf are the servants going to do, tell him to stop? They physically can't stop him due to his rank
"It seems like you were going to hit her. With the hand that once held a sword..." He's going to break it. He's going to break his arm. Do it. Do it! Do it do it do it do it do it! CMON, BREAK THAT PIECE OF SHIT'S ARM LIKE THE TWIG HE IS!!!