Broken, I think most MLC'ers hate themselves. That's why they spew hate anger resentment. They have to blame someone and your the closest one. I hated myself in my MLC and transferred it to my wife. I didnt tell her like your wife is doing but I felt it strongly.
I don't do the stat thing so I can't tell you one way or the other.
I stay out of the line of fire and would suggest you do the same. I have many GAL activities now and it takes up a lot of my time. I have dated a couple times but I've decided I'm not really feeling it so I do fun things, take trips and be the best parent I can be.
Your wife sounds like she is in replay. Until she looks inward and releases her anger and comes to grip with the journey she is on there really isn't much you can do. Listen to the people on this board and read the materials. Get a life for yourself. She may not come back. And the 2 year thing don't count on it. You set yourself up for disappointment.
I was not this way when the bomb went off but through the people here, the materials, books, etc I am getting better. There will be life after this event in your life whether it is with your wife or not.
Give yourself a chance and detach from the situation so your not bitter if she does make that attempt. Your wife is floundering in the fog. Give her the space to find herself.