I think that it's a mistake to let her back in unless she's wanting to reconcile. She'll just cake eat as long as you let her. If she's just looking for a place to stay, that's her problem, not yours.
It's awfully hard to get a WAS out, so letting them back in is like inviting Nosferatu...
That's kind of my worry! I see it as her cake eating to a point, but as said above, I still have to be able to live with myself and face the kids about how I handle their Mom.
Nosferatu? I LOVE IT!!!
Me-44 W-41 M-20yrs S13 D18 ILYBINILWY-June 2010 (On our Anniversary)