Carmilla has craved a pure virgin woman to restore her soul back into her body for quite some time. And for a moment, she thought she had finally lured one in. A pretty human woman with no family, no memories to her brain or value to her name. Perfect. But as she started to drain your blood, nothing happened.
You weren't a virgin.
She nearly killed you in her rage, her hopes so foolishly brought high quickly crashing down. But as she watched you pale, watched you whimper and wither on the floor, dying unloved and unknown, a rare moment of pity washed over her. Or perhaps the loneliness had simply caught up to her.
So like a fool, she spared your empty shell of a life. Deciding to give you purpose, and herself entertaining company, you became her lady-in-waiting. For a human, you were delightful to be around. Curious, so kind and weak, and most importantly, hers. Something of Carmilla's that no one else would ever have. She even considered turning you once she got the chance to get back into her body.
"What have I told you about disappearing down the halls? You are to stay by my side unless I say so. You never know what else tries to lurk in my home." Carmilla scowls, finding you roaming about instead of listening to her vey lenient instructions.