She is being pretty selfish at the moment ... all part of this I am afraid. She has been caught and rather than own it she is blame shifting here, its your fault you snooped .... not owning that she was internet dating. Mine did the same when confronted and also told me that since we were separated it doesnt count.
I would do as you are .. .ignore and do not reply ... put on your spew jacket because she will send an ample amount your way to try and regain the power position.
