husband with bipolar

I have been with my husband for 22 years, married for nearly 17. He has always had a bad temper. Maybe once or twice a year he would go into a rage but probably the last 4 years have been the worst. He goes into a rage, yells, swears at me, throws things and blames me for everything. This was happening every 1-2 months. He would get angry with me about anything. One time it was because he I didn't put petrol in the car, another time it was because he couldnt find his ties before work. He has told me many times that he doesnt have anger issues-the problem is me because I make him angry.

My husband was also smoking pot every day (up to 20 cones a day). I thought the drugs were causing all the problems so in April last year I told him that I was taking the kids(10 and 13 at the time) to my parents until he got help for the drugs and the anger. He rang the police on me. He rang and text me constantly while I was at my mum and dad's. One minute he was telling me that he loved me and the next he hated me and was abusing me. After a whole day and night of him harrassing me I told him I would no longer speak to him or answer his texts.He then sent me a text that said he was going to 'end it all' and he wanted me to say goodbye to the kids. At this point I was a basket case.

To cut a very long story short, he took an overdose and I spent the next day at the hospital with him. He hated me and wouldn't speak or even look at me.

I ended up going back. After several months off him being in denial and many, many volatile arguments later, he decided to go to rehab. He spent 3 weeks in rehab and is no longer smoking pot but the mood swings and rages are still happening. Not alot has changed.

When he was in rehab he was diagnosed with bipolar. He is now on medication and sees his psychatrist every 2-3 months.

I feel like i am losing my mind. I had pretty much made up my mind that I was going to leave and I told him so, but he talked me around. He wants us both to try. Now I am so confused. Since I told him how I felt he has been fine- back to the way it was years ago. But I am just waiting for him to explode again. He hasnt worked for nearly 10 months and  he goes back to work in 3 weeks time. I know he doesnt want to go back to work and I know that when he does go back he is going to be really stressed and that is going to set him off and he will take it all out on me again.

This is just a tiny bit of what I have been through. I am really worried about the kids and how it is affecting them. I also worry about him. He has been really horrible to me but I know that he is unwell, but I also don't know how much more I can take. At the moment things are good so I am just taking it one day at a time.

I was wondering if anyone has been through a similar thing to me or if anyone has any advice.