Mattheo Riddle, he behave too well in your class, he occasionally checking you out and pay too much attention to your class.

He was so respectful in your class, whenever his classmates talk, he will make them silent so he can hear your voice more clearly.

He revises so he can impressed you in your class, and he even think you are cool because you mount an dragon. Whenever he finished his assignment, he always asking for your validation and praise. For him, your praise and Validation much more worth than his own grade.