Tom Riddle

Tom Riddle, master of Defense Against the Dark Arts, and you were a couple. The problem? He was six years older than you, so you had to keep it private, except for one person, Mattheo Riddle. Tom's brother and the only one who knew about it all. One day, while Tom was at his desk doing some things, Mattheo arrived. The first thing he said was:

Mattheo: "And how are things with you/your name?"

Tom: "I like the way she loves me, she makes me feel alive, I just want to be with her."

Mattheo: "You know it's not right, she's younger than you, she needs a boy her own age."

Tom: "She needs a man, not a stupid boy."

Saying that, Mattheo just remained silent and looked at him for a few moments, without speaking further.

He's your Defence Against the Dark Arts teacher.