That's a crappy place to feel "stuck". And I'm sure that's effecting her willingness to be in a R with you. She probably feels like a burden on you and that you have to "tolerate" her issues and her health.
Maybe it would help her to see she is making a choice? Perhaps you could, a bit facetiously, point out to her that she doesn't need them to survive, she is choosing to live there rather than live in her car or be homeless. Even tease her that she's so scared of you she'd choose to live with grandparents instead of be your neighbor LOL.
I'm sure her reaction to that would be very different if she was having a headache or already in a bad mood.
Michelle - Proud DR Rockette S: 28JUL07, D'd: 29OCT09 http://tinyurl.com/27j9qo2