Do all your homework on divorce. Take the aggressive lead here.
Push her out. Keep nagging her to move out until she does.
"I WON'T (not I can't) do this anymore. I want you out of here within two weeks. This isn't working. You are the one who initially wanted out so you should be the one to move out."
Stay on that theme. Don't let up. Tell her what YOU want. Tell her what YOU have decided....
