I have talked to her and I am watching it first hand as well, it is sickening. My Ws OW is doing the exact thing to her W, that my W is doing to me! Temp checking, crumb leaving. Makes me want to puke!!
I think they do it when they really aren't happy in the affair. Sit tight and let's see when your W comes back to you!
11/4/15 W revealed EA/2 months later became PA with co-worker Reconciling since late April 2016 Don't give up until it's time, then move on Be patient, strong and kind but never a doormat