If you have been seperated for 3+ weeks, and she is seeing somebody else, then why aren't you going dim?
Seriously, she violated a basic relationship boundary, and the hard part--getting her out of the house--has already happened.
If that is so, now is the time to make yourself scarce, and take the focus off her life and put it on making your life way better.
I didn't talk to my wife for more than 2 months after she moved out. It took her more than 3 months to stop being horribly negative about all things TimeHeals, and to be honest, I was pretty much ready to embrace a life without her at that point.
I had cooperated with a divorce, I had signed a seperation agreement, and do you know when my wife started to have second thoughts for real? Right around the time the quick divorce was about to be final. Then she had it postponed. Then she started working to get me interested.
M-47,W-40,No kids D-filed 5/27/2010 Piecing - 10/21/2010 -=Soon to be banned=-