Ps, I love the ring, he picked that out all by himself
You need to take some steps to protect yourself emotionally. Maybe you could find a counselor who is trained in such matters. As for your partner, he is definitely a danger to himself, and that is one of the criteria for a forcible commitment. You cannot give your partner the help he needs on your own. If you’re afraid he’ll be angry at you if you commit him, just remember that he is likely to try suicide again, maybe with success. Think of the effect on your kids if he succeeds in killing himself. Get him committed and stabilized on medication, for everyone’s sake.
It’s SO hard NOT to take it personally when your significant other has this disease and closes you off or shuts you out when they are in the throes of a psychotic episode. It’s very hard for those of us who do NOT suffer from schizophrenia to understand their mindset and way of thinking, and realize that they are not perceiving the world in the same way a ‘normal’ person perceives it. Remember that it is NOT him, but the illness doing this, and do what you can to help him on the path to wellness. The only thing worse than him being a danger to himself is being a danger to others --namely you and the kids. At least YOU are not in danger. I’m sorry you had to deal with flattened affect and suicidal ideation on this last episode of his. I am thankful you are accessing help and badly needed psychiatric services for him. Good for you for being proactive and doing the right thing in spite of your own grief and emotional devastation over this. Here is your significant other whom you love who ‘should’ be normal, but isn’t. But you love the REAL him and you know the REAL him is in there somewhere and needs to come back out and live again. I’ll pray for you too. Best wishes.
Get him treatment. He is a danger to himself or others. That’s the criteria for a commitment. He might be angry at first, but once he gets on med’s he might thank you.
Hi guys, thank you for all your words. Here is an update over the last 5 months. His condition got worse and worse, it was a living hell for me, luckily he made every effort to hide his condition from the kids and they were uneffected through this period . On me and him absolute hell. Our love stayed strong but our depression deepened. Things came to a head one day and it was make or break. We decided it was best for the moment to live apart, so he moved to a caravan on a friend of ours property. We are still very much together, I would NOT EVER abandon my partner. He gave me all his pass words and I sat down and read about the history of his illness, it gave me much insight, I even was able to pick when it was him pretending to be someone else . I saw his pain. He is struggling by himself but it is also giving him time to finally accept this illness and work towards management, there are alot of ups and downs but many moments of clarity. Just the other night he was talking about hospitalisation to get of marijuana, this is a first. It is good he is thinking of these things. I am currently getting counseling once a week souly aimed at giving me strength to understand and support him on his journey, although I can’t walk it with him I will hold his hand all the way and give him love. This arrangement is working well for us and I hope it remains on this path of hope. The kids took it hard at first him not being here but we have explained to them that daddy is sick and this is best for his recovery. We make sure they see him twice a week and always reassure them that mum and dad love each other very much and love them to, that we are always in each others hearts. They still miss him but seem secure in it.
Thank you for the update @silwhSzm. It sounds like you are both setting the groundwork for a stronger future for you and your children. 
Things are terrible, we are still living apart. He just seems to get worse and worse. My heart breaks for him. He still refuses treatment, he says it will kill him to face things. His anger is so huge it’s hard to hold up under it. I’ve had to put the kids first a few times lately and he hasn’t taken it well at all . I love this man so deeply and my hands are tied. The doctor has told me that without treatment he will only get worse. I feel so helpless, I just want him to feel peace. 
If he is resistant to medication and help, probably the best thing you can do is “let him go”? you’ve been doing your best, now do the best thing for your children. be done with him. I’m sorry but he doesn’t deserve such a fine woman as yourself beating yourself up all the time. good luck on your decision.
I’m sorry this is happening to your family. I think it is good to take care of your children and yourself. If a parent is so ill that he cannot put his children’s well-being ahead of his own, he will be glad you are able to when/ if he recovers. I hope for the best for your entire family.
Thank you for all your support and reply’s, this group helps so much. There is nowhere else I can be so open and honest with my fears and my love.