I have a bi-polar spouse who wants to work things out and move back in. What can I do?

My husband is an undiagnosed bi-polar person. He moved out of the house about two months ago after years of threatening during his emotional cycles several time a year to leave. Now that he has had a taste of what it would be like to not be married and have someone do everything for you and put up with you, he wants to move back in and work things out. He says that he is sorry and knows that he was wrong and wants to do marriage counseling. Now for my side of the story. I have put up with this behavior during our entire relationship. There have been times before that he says he sorry and he knows he has to change and says he will do counseling, only to go a couple of times and give up. The difference this time is that he actually moved out and I do not want him to move back in. I do not trust his "I'm sorry" and "I know I was wrong" and his agreement to do counseling. I do not want to put myself back in the situation again. I am ready to move on. I do feel like I owe us as a married couple the chance to try and see if counseling works. I agreed to go to marraige couseling with him and I told him that I wanted him to get counseling for himself also. I also told him that I do not want him to move back in and that this is not an easy fix and not as simple as he thinks it is. Honestly, I do not think that he is commited enough to put the effort into fixing things. It wil take a lot of work and he is lazy and wants things to be done for him. He alredy expects me to look into the counseling and set things up. I have to do all of the leg work. I am willing to go to the counseling with him even if it's just to get him to see what went wrong and that it probably isn't fixable and we should both move on. Does anyone think that there is something else that can be done?