She’ll probably ask him directly, she’s actually pretty blunt if you think about it �...

I don't think she will, 'cuz she promised not to tell his secret. How would she explain knowing he lived with demons??

i mean asking him would reveal that she knows but it's not exactly "telling his secret" per say, it's a question that would probably be brushed off as one of the many weird things she say's if the other party doesn't know about his childhood as well