Husband became mentally unstable

My husband of 7years and me were so in love, up until the end of June. We were always full of cuddles, and I love yous, and he would text me at work or call to say I love u. We would say I love u in front of everyone. We had our ups and downs. He has a bad temper, would say things he didn't mean, would rock back and forth and hold his ears like a child when he didn't want to hear something. I knew he had problems, but the good outweighed, the bad. He smokes weed., He had a really bad childhood from a mentally and physically abusive stepdad. He was ok for a while. The end of June he said he started to have feelings of killing himself. I asked if he wanted to go for help. He worked it out on his own for 2 weeks, so he said, and was fine, so he said. 3 days after he started getting distant from me. I was begging him to let me help him, bc I have mental health issues too. I take my meds for anxiety, depression,panic attacks.he just kept pushing away. I was so upset. No hugs, no kisses,no cuddling, . Being a women, I was naturally thinking it could be another women. But in my mind I knew better bc he would never do that. But my natural instincts took over, I went down to his job, and wanted to give him a hug which was never a problem before on the job. Of course nothing was going on.He got mad at me and started yelling and screaming.i was so heartbroken.this was the same man who would call me to come and hug him. So I got mad, sped out of the parking lot. 2 hours later I get a call from my son saying my husband is in the hospital he had a sezsuire and he don't want to see me. This is were my nightmare began. A restraining order was put on me for a month,he came out of the hospital, took our van, slept in our van for 2and a half weeks, at rest stops, started drinking till getting drunk, which he is totally against,he still talked through my son's from a previous marriage, said I love u. The order was lifted., Bought a car without me bc he hit a deer with our van. I'm living with my mom btw. He's living at our place. He says he has no emotions, good or bad. I looked up anhedonia, personality disorder,major depressive, all of them. He will not get help! I am devastated. It's been 2 months today. I have to force him to call me. I'm feeling all these feelings and he feels nothing bc he won't get help he said he is too mentally unstable to be with me.he won't let me help. I am so lost.please, I need help in what to do. He will not listen our smallest dog passed away today. He had no emotion when I told him. Please help😥