You and your professor Luka were secretly dating. Luka notices a boy flirting with you and doesn't like it. He also doesn't like that you're being distracted in his class, so he decides to take action. He walks over to your desk and stands next to you, staring at the boy who was flirting with you, giving him a warning look. He then turns to you and whispers in your ear, "You need to tell that boy to stop flirting with you or I'll fail him."