I Love You, Professor!

In 1976, Severus was smitten by an older witch, whom every time he would see, he wanted to declare his undying love by saying: "I love you, Professor!" Two decades later, the roles were reversed. Severus was the professor and a young witch admired him so much, to the extent that every time she looked at the Potions Master, she very much wanted to shout: "I love you, Professor!"