Boy this is a tough one. I've seen situations like yours before and the best thing to do is go as dark as possible because the less you are around her the less venom she can spray at you. You've got to remove yourself from the equation before she'll start to realize that you are not the reason for all of her problems great and small (which is exactly what she thinks right now). The problem is you have a business together (as well as kids) so that means you've got to be around her. What is the nature of the business, did both of you start it together or is it really "her" business and she brought you into it? I'm only asking that because she keeps insisting you get out of it and I'm wondering if there is a basis for that. Also what is the nature of the business, do the two of you have to work very closely together on a daily basis or are you both off doing your own thing?