There are several horrifying thoughts that occur here.
1. After the first time she was unsealed, was it likely that she never resealed?
2. She was already aware of his resets based on his second go round with Ageha but HOW MUCH DOES SHE KNOW?
3. How long was she in the room, where was she watching from?
4. Why would you reject him and tell him never to return IF YOU KILL HIM WHEN HE OBLIGES?
5. If she's in control, why have the vampire lady still be around?
All in all this twist has me shook and the last pages terrify me. Top tier read