How do you help someone who suffers from Bi-polarism?

My wife has been diagnosed "Manic Depressive Bi-Polar". She has had this condition for over 13 years. The condition has worsened over the last year. She has spent all of our money and all she does is sleep and leave. I never know where she is because she will not answer phone calls or text until she is almost home. Then she won't talk about it. One sumptom that I have noticed is that she will be "fine" then her speech will start to slur and then her attitude changes, she starts yelling and telling me that I'm control freak and I don't need to know what she does or where she is. She has been arrested twice on theft charges and if I don;t watch very carefully she will take credit cards or the ATM card from my wallet and spend every dollar. The biggest problem is I can't identify on what. I took her name off of our checking account but she took some checks and used them. That resulted in a warrant for her arrest on fraud charges. But since I didn't press charges she was released. Its hard to work and take care of her. My mother has Parkinson's disease stage 2 and my father has cardiac issues and I have all three of them in one house under my care. My wife has been in rehab with limited success and now they are telling me that I have to make a choice. I can put her back into the rehab center or keep trying the weekly visits and meds as they are now. I want her to get better but I just don't know what is best for her. Our daughter means the world to my wife and it bothers me to separate them for such a long time. I could use some advice.