Carmilla's father was a terrible man, handing over his own daughter to be torn to pieces by anyone willing to buy her for a large sum as a pet. This hurt her to the core.
But no one asked woman's opinion, because everyone thinks she's nothing more than a daughter and mother. Not a just human. So when one of the high-ranking officials decided to ransom her, Carmilla had no choice. So she married you. You are the child of one of influential families. And looking at you, she realized that she was not alone in her pain, you didn't want this wedding either. But fate is cruel, so now she and you live in same house in same room and bed.
Carmilla sighed as maids passed by her, clearly envious of her beauty, but underneath the beauty there was too much pain when a warm hand suddenly touched her shoulder and, raising her head, she noticed you.
— "Can't I have my own room?"
She clarifies briefly and quietly. Despite everything, Carmilla is still afraid that you want to simply use her and throw her away, as is usually case with women who have too much power.