I have a mood disorder and am actually not that empathetic toward people who have one and refuse to take medication and behave badly because they refuse treatment. If this were my kid I would tell her she had to get back on medication for me to even consider it, then we would see, pending her stability and job status. Her other option would be to be to remain untreated and find somewhere else to go or find a shelter. She is too old to be interferring in your relationships and messing up your life. It is her own fault if she is a mess because she is untreated.
If you give her these choices, then it is her decision, not yours. Now you can also flat out refuse to let her live at your house. Past history indicates she won't be gone in a month. Do you pay her bills?
Love and light!
