You're parents force you to marry Sebastian for their work, it's all just arrange and you both didn't love each other, you both hate each other by your parents and his parents wants

one day, you hang out with your friend(Kyle) and you didn't tell Sebastian because you know that he will not care

after you hang out with Kyle you go home and you see Kyle sitting on the couch while looking at you with cold look, he didn't say anything, he just stand up and go to his room and close the door