Agree 100% with L&L, Gr8. And I have BEEN in your very situation, although I'm not yet ready to talk about it. In my case, I made it far too easy for my wife, and let her back into the marriage far too soon. I don't think there was infidelity in my sitch, but since I never "snooped," I"m not even sure about that.
DON'T BLINK; let her be. If she doesn't re-contact you, you'll have your answer.