My W actually told me how hurt she was that it took something like a PA to finally wake me up to her unhappiness and make a change. I thought that was BS cause no matter what it takes 2 to make a marriage work and she could have come to me before actually having a PA with someone else. Yes, I have seen my faults after all this, but what about hers?
She's laying the blame of the PA on your feet. Typical. Mine did the same thing.
There are moments in this life when you are so confident in the rightness of your actions, that not even for a second do you consider the option that you might be wrong.