My mate has delusional disorder, persecutory type.
She adamantly believes that all of our surrounding neighbors are engaged in some criminal conspiracy. We're under constant surveillance, and our landscaping is being slowly poisoned to improve their sight lines. They signal our movements to one another via the street lights. They are beaming ultrasonic and laser beams at us. There are people creeping through our woods at night. Her former employer (who she accused of poisoning her, resulting in an OSHA investigation) may be collaborating with the conspirators. They're surreptitiously moving the surrounding phone poles, fences, etc., but she is the only one astute enough to notice. Ultimately, they're going to kill her, because she "knows too much."
She finds these delusions to be distressing, to say the least. My distress at being coronavirus-locked-down for nine months with someone who at times is oscillating between being rageful and distraught; frenetically spewing this crazy from the moment she awakes to the moment she collapses out of sheer emotional exhaustion, is pretty high as well. With a new doctor she's a bit better, but if anyone has any suggestions for how I might help her, I'd be deeply grateful.
B@☮