Support group for spouses of people with mental illness in Spokane, WA?

I am so very tired and need some help. My husband is probably bi-polar and possibly schizophrenic and he swirls drama and chaos around him like a cloak. I don't know what to do anymore. He is completely in denial and blames me for everything. I had the best day in a long time yesterday. I spoke with a counselor on my own and she really helped me and I was in a great mood and then I came home. Two weeks ago he put a gun to his chest and threatened to kill himself because I wouldn't let him get a puppy. Last night he informed me that he is flying to VA and adopting a dog and it's not open for discussion and now he's gone to VA. How is he supposed to take care of dog when he can't take care of himself? Every time I think I can be happy, something else happens in our life to yank the rug out from under me. He is in complete denial that something is wrong even though his mother, his best friend, his brother-in-law and his wife have asked him what's wrong. Thank you for listening and any help you can give me.