That's interesting. She sounds a bit like my grandmother, except for the sex thing. I think complaining is pretty common with seniors because they have more time to dwell on resentments and having to rely on others makes them feel a bit powerless, but the obsession with her appearance is a bit unusual.

I only knew one bipolar person. She when she was off her meds, she got overexcited and accused people of not visiting her when she was depressed. She was normally very nice and friendly.