Hi, chipmonk2, and again, welcome! As you know, this situation is a very tough one. When someone is an adult, there's only so much we, even as parents, can do. Force him to take meds? Force him to see a doctor? How?!

In the U.S., to be hospitalized a person has to be perceived to be a danger to himself or others. Sad to say, when that does seem to be the case, then the police could be called and he could be taken in to hospital. But, as we saw, before, once he gets out there's no guarantee he will stay with his treatment.

Doctors just don't know all the ends and outs of the brain, and probably never will. But evidently something such as a chemical imbalance or the "wrong" parts of the brain taking over or malfunctioning, in a sense, can cause these kinds of symptoms. Environmental factors such as stress can play a role, but some folks don't develop these problems even with lots of stress. We as parents just do the best we can, and despite our best efforts, our children can develop these disorders. (That's my layman's thinking, anyway!)

One thing about it, we can not talk anyone out of psychosis. They believe what they believe. You might read about depression to see what might be done to help with that. Maybe reading here in the Depression forum could be helpful.

Also, is there a NAMI (National Alliance for the Mentally Ill) group around your area? They might have some sort of classes or support groups that can help.

You might also consider posting in the Partners forum here, if you haven't already. Here is that link: http://forums.psychcentral.com/partn...ivers-support/.