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.
And then he hauls Chelise down from the rafters and carries her out of the room.
Belle heads for the library, now that he's got the confirmation he needs to let her out of his sight.
He returns some time later, without Chelise, all scratched to hell the way he is sometimes after he wrestles with rosebushes.
"I love you," he says. "Can I still sleep in your bed, even though I don't have to?"
"You hated her. You wanted to kill her. Why are you crying?"
"I wish she'd never come here. I wish she were back at home where she belonged. But she decided to die, and I don't understand that."
"Sometimes I wish I could read your mind. Maybe then I could understand more of what you say," sighs Belle.
"...Really? I could never tolerate it if someone read my mind. But if this is another strange thing you like there might actually be a spell for it." She pauses. "It might... help."
"Are you sure? It might not be very selective. I might just see everything."
She turns up a few half-promising spells that require casting each time, and one that is much more comprehensive, that will turn his mindscape into a metaphorical open book whenever she happens to look at it.
"I found something," she murmurs. "It's permanent. I don't have to use it if I don't mean to, but I'll have to separately disenchant us if you ever want me to not be able to anymore."
"And it's reasonably large, but I suppose you don't mind that either."