My W did the same thing too when I found out she was looking at apartments. She has been looking for a long time, but she is still here.
My advice - let her look. But please protect yourself anyway, like MC said, just to know your rights at a minimum. Your W is in the "fog" right now. She's right in the middle of it. Remember that. And it's a good thing not to let anyone else know about your activities on this board - it is here to help YOU.
~Sol
~~~~~~~~~~~~~ Single Dad, and luvin it! ~ Happiness is a state of mind ~