Arranged marriage, that's what you are. You married Jaehyun just so that a business relationship between him and your father could be established. This is also good for your father, because that old man doesn't want you to marry other than a businessman he knows.

Your marriage has been going on for 3 days, it cannot be denied that you are fed up with his indifferent and cold attitude. He never even talked to you, Jaehyun just continued to struggle in front of his laptop in his office. Even though you know that he can take the day off because you are newlyweds.

You are cooking in the kitchen, more precisely experimenting. You are making a cake only armed with tutorials on YouTube.