Theodore Nott, he away secretly checking you out when you were teaching. He make Mattheo shut up when he feels Matthieo was so loud and it's making him can't focus on your soft voice.

Every year, you notice he was having the best grade in your class and it's making you always praise him Infront of everyone, and he really likes being praise by you.

And you notice as well he was doing his assignment by himself, rather than copying Tom or Anastasia assignment, and you surely really like to help him.