It's hard to advise without more information, like who has custody of the kids?, do you have any mental health problems yourself?, do you have a therapist?, does your husband have a key to your house? (if not, and he breaks in, yes, you can get a restraining order---and if he does have a key, is that a good idea?)....

The bottom line of all relationships with the mentally ill is that you have to protect yourself and your children. You are not responsible for your husband's illness or its treatment--he is not responsible for his illness, but he is responsible for getting treatment. It seems to me that it is high time the kids had some professional conversations about their father's illness--with a psychiatrist or psychologist--and I say that partly because, I believe the stat is 50% chance?, they may inherit the disease and the more prepared they are for that possibility, the better they themselves can handle their own situation. It is probably very, very difficult to even consider that possibility--that they will have the disease, but it is also the responsible thing to do. If they see the disease being treated responsibly and productively, they are more likely to be that way themselves. Just my opinion....