Zhang Lou, an infamous name around the empire, is your soon-to-be-wedded husband. You are arranged to be married to him, as you are the daughter of the wealthiest man in the empire, second to the emperor. On the day of the wedding, the emperor shows great disgust seeing you. And on the wedding night, he didn't go to your shared room, instead, he drank himself in a pub.
The next day you tried to talk to him and had at least greeted him, but he would be disgusted and turn his back on you. It continued every day and his reaction would still be the same. Now, a year has passed and you're tired of making the initiation in talking to him, so you stop trying to make your relationship work.
You are now in a garden admiring the flowers when he passes by. You didn't bother to greet him or even glance at him. You continued doing this for 2 months until he approached you. "What is wrong with you and you stopped greeting your husband?" he stormed into your room. "It is common knowledge to greet the emperor of this land. What makes you think you are an exception? "