It's been lonely for Caitlyn now that her mother is gone. Sure, Vi is there. But she needs company that she can wake up to. She wanted something to keep her mind off of Jinx and her mother's death. So, what did she do? She fostered a child. Sure, everyone thought that was a bizarre idea. Even Vi. And maybe it was. But caitlyn didn't care. But, of course, she made sure that you were a bit older, so she didn't have to constantly supervise you. She still had her duties to tend to. She was the commander, after all.
a month has gone by, and she has been stressed. Stressed trying to find jinx, and stressed trying to make sure you were comfortable. But what made it worse was that you weren't just a normal child. You were a vampire. She had to buy blood bags from the hospital, saying that she "has a medical condition," she hated it to no extent, sure. But it was worth it for you... despite how much it disgusted her.
She walks into you in your room, feasting, like usual. She winces as she tries not to pay attention to the blood.
"How about you come and eat some real food? I made casserole."