Another thing I found that helped me deal with all the smoke and mirror games my wife plays - get some friends together and play poker.
Particularly avoid the draw versions.
This will get you to NOT trust what people are saying when they are trying to intimidate you. This will get you in a mindset to read body language and tells. Poker is a game of courage and intimidation. This is the same game your wife is playing. Its just a big game of chicken.
She's in a bad position now and she knows it, as long as you keep up what you're doin things will get increasingly worse for her and easier for you.
If you can find some 180's to do, this is a good time to try them out - plant some flowers, learn to cook. Take a course in french at your local college....whatever will SHOCK her.