I'm sure you know this and I am not a lawyer, but be VERY careful that you: 1) Don't go on record as saying you don't want your son. 2) Say or DO ANYTHING that could even remotely be construed as threatening or violent.
I do not know the law, but my guess is that you cannot force her out, and if she can find a way to make it sound like you MIGHT become violent, you might be the one out of the house.
M:37 W:34 M:4 years T:6 years No Kids A disclosed - 9/1/2010 W asks for separation - 10/19/2010 Moving on - 10/24/2010 A ends (and I believe her) - 12/2010 Content - 3/1/2011 Served - 3/18/2011 D Day - 6/20/2011