Belle studies. She really doesn't get as lonely as Beast - and maybe he and Chelise can fall in love if she stays out of their way, and then the curse will break and Belle can ransack the library and go home, that would be fine. She works.
"If you had died," he says, "I would have made myself love her, and then if she loved me and I was free I would have killed her, and if she did not and I was not I would have killed her when the rose died."
"I want to be free," he says. "But I hate her. But you can love someone and hate them. It's even easier, in some ways. But I don't want to if I have another chance. Because I hate her."
"I don't think I know how to love someone and hate them." She snorts softly. "But then - I don't even know how to do the first alone. Still. It sounds harder, not easier."
"So," he says. "I could love her, and it would hurt, and I would kill her. Or I could just kill her now and not have to worry about it."
"I might manage to love you soon, though," Belle whispers. "And then we could all go. I doubt she's dangerous to her friends, when she can go where she likes."
She nods.
She snuggles up to Beast and picks up the book she was in the middle of.
She peers into the library, and shrinks back as soon as she's gotten a glimpse but not before the occupants can see her if they aren't trying to read.
Belle looks up a personal ward, and casts it on herself (through Beast, with his permission) and spares Chelise no further thought.
Even with the personal ward on, the Beast hardly strays out of sight of Belle, and never farther than the other side of a door.