WAW is ok with divorce

[BrokenInside]

No, she does not control it, she just spends it. She never knows how much money is in the checking account. So I am the one that has to keep an eye on it so that checks do not bounce. She does carry the checkbook because I never pay anything with checks but was never able to persuade her to do the same. We have all our accounts joined (will never make that mistake again). So yes, I have thought about separating our finances. Closing all the joint accounts and credit cards but don't know yet how she will react to that.
I need help from the vets on this because I am not sure that is the right way to go.
OM is bankrupt and she is "in love" so I am worried about some money "evaporating" for that reason. The main issue here is that some times she is the person I know and trust and sometimes she is not.
She feels she deserves to be supported because according to her she sacrificed here career to rear the children and now she needs help with getting her credential to teach again.
I guess I can tell her that we can split everything we had up to the day she dropped the bomb and from then on what I make is mine and I will pay her child support and alimony. I think that is more than fair.
I just do not want her to stay for financial reasons. Yes, she probably would say ok to droping OM but it would not be sincere.
I know she thinks about this all the time and does not feel good about it.
In that sense she is an atypical WAW. She did not wait until she was able to survive on her own to drop the bomb and now she regrets it. (the timing I mean).
She is expecting me to kick her out any minute now and she is dumbfounded that I have not done it yet.
She is in Idaho with her family right now and has been for two weeks. The only time she called to talk about the R she asked me if she still had a home to come back to. I told her that I never kicked her out and would never do that. I do not want to separate her from the children. They spend most of the time with her because I work an hour away from home.
In any case part of our problems were that she felt I was controlling because I would not agree with her spending habits. However, I never stopped her from doing anything.
There is also guilt on my part. I feel I was too harsh before the bomb droped because I was always pointing out the non-sense in her spending and how much more money we would have if she had been more careful. When we finally talked about separation, I told her that I never meant to hurt her. That if I wanted to save money was for the future of the family and now that she was destroying it I could care less if she spent it all. So if I start making money the issue, I would be contradicting myself.