She is not, and Beatrice is actually a computer programmer. Grace has been suggesting to me and our father that she's been in therapy and taking her antidepressants, but according to Beatrice, she dropped her last therapist (and will not talk about why), and has since run out of her prescription. Grace has a lot of friends (she is extremely charming, as borderline personalities tend to be), but most of those friendships seem to be with people even less able to hold it together than she is. Thus, she is looked at as a rock in an ocean of chaos and the best one in a crisis. The few stable people she makes friends with tend to drift away over time, as she can be so demanding.
Part of me is also now wondering what a gracious gift would be to extend my thanks to Beatrice for her help and patience. Beatrice is of a very philanthropic bent, so I'm thinking a donation within my currently limited means to a charity specializing in mental health.