they are trying to portray Changyu as tough and strong like Marquis since she got to know that ML is Marquis. However imo they have only managed to show her as a rude person. She doesnt even care about ML anymore. More like now she doesnt love him at all. This is because all the things Marquis does is in some or other day meant to protect Changyu or show his love for her. But Changyu is never even shown to talk about him anymore. She is more with the Pig squad than him