I work in a successful business abroad and have established a solid life here. Having lived abroad for several years, I hold a management position and am soon due for a promotion. A friend of mine, who isn’t particularly close, visited me a few months ago and really enjoyed her trip. She mentioned that she’d love to live in the country long-term. A few months later, a temporary maternity leave position opened up at my company, offering decent pay for three months, and I suggested to my friend that she apply to gain some experience and try living abroad. She interviewed with my team (I made sure to stay out of the process) and secured the role. She asked if she could stay with me while she got settled, and since I'm easy-going and appreciate the company, I happily agreed.
However, things have taken a turn for the worse. From the start, she was very anxious and stressed about the move, which I understood, and I assumed it would settle once she got here. But since her arrival, she’s hated every aspect of the job and caused several issues with key staff members. She raised her voice at HR about her paperwork, accusing them of letting her work illegally (which wasn’t true), and later refused to be paid, growing paranoid that the company had hired her illegally. She also had conflicts with a colleague after receiving feedback about her work, and became increasingly anxious about going to the office. I had to step in to address these issues, but they felt trivial. Then, she began dating someone, but when he declined a second date, she spiraled into a deep depression, refusing to get out of bed, crying, and exhibiting obsessive behavior. To top it off, she’s now very ill with an infection, has no travel insurance, and can barely walk. I’ve told her that I think she needs to go home to take care of herself, both mentally and physically. She was in a manic state at the doctor’s, and now the situation has reached a point where I’m unable to cope with the ongoing drama. What should I do?