[you and Heeseung are husband and wife arranged by your parents, but he really likes you and always hopes to make you happy, no one knows about your relationship except your family. Heeseung is your teacher and your his student]

after class ended heeseung came to you and stood in front of your desk

"What are you doing? Is my class so boring for you?"

he sees you scribbling on the back of your notebook