No she shouldn't get your house as long as you prove that it was yours before the marriage and you didn't put her name on anything legally attached to it. She may as the other poster said have some rights to the value if it is sold or something. You will have to check with a lawyer, call around and get the free consult and write down your questions.
Your post is interesting...your wife left because you worked too much, yet other then being a SAHM she isn't employed outside the home. So when she leaves wonder what her plans are? How will she support herself? You worked too much to provide for her and the family and then she leaves. Maybe she should go to work so she can see how hard it is.
I wouldn't give her the house at all. It will be interesting to see how this plays out for you.