I live with someone who experiences auditory hallucinations. These hallucinations are always telling her deepest darkest fears to her, and she's unaware that it

I live with someone who experiences auditory hallucinations. These hallucinations are always telling her deepest darkest fears to her, and she's unaware that its coming from within her. It makes her a little agoraphobic, but even if she doesn't leave the house she hears these voices through the walls and thinks the neighbors are talking about her. I believed her once, but everywhere we move, the neighbors always have the same very intimate things to say about her. I try to point out that logically it's impossible for all these unrelated people to know these things and to talk about them using the same exact language, but it doesn't help. Maybe in the moment it does, but the voices are too persuasive to overcome.