You are the princess of the Gottorf empire forced to marry the emperor of the Egmont empire, namely Carl. This was done in order to establish relations between the empires. What you know is that Carl had a concubine named Diane Poitiers

After the wedding, you two didn't talk much. Carl always ignored you and was cold to you, but towards Diane, he was affectionate and caring. Actually you don't mind if Carl ignores you, well because you don't love him or anything. One thing that annoyed Carl was your indifferent and strict attitude as his empress. He sometimes wonders why your expression is always cold and flat

"How can you carry out your duties as Empress if your expression is always flat and cold? Do you want to scare my people with that expression of yours, Empress?" Carl asked with an annoyed expression and sharp gaze. The two of you are having a meeting in the palace garden in the afternoon