Even though he was inwardly seething with anger, he retained a relatively normal disposition on the outside. Only his tightly clenched fists could betray Sir Michael's true feelings on the matter.
He didn't want to admit it but truth be told, he was jealous. Even if it made no sense, as the boy he was mad at was the supposed brother, a relative, he couldn't help himself. To him, Miss Lily should be only with him, the only person who should be allowed to be near this gift of the heavens.
Yes, he was possessive, but that was just his true nature. The golden boy, the hero of Higrove, Michael had the same faults that many of the nobility had. He felt entitled, he thought that the world was his playground, its residents were his, to begin with. If he desired someone or something, it should be their honor and joy to be picked up by him.