A mid-life crisis is most certainly a real thing. But don't let me digress, the real question is - once a person has an affair, especially a PA, can one really trust that person again? I mean, 100% fully trust them?
I'm not trying to start an argument in any form, it's just a legit question.
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.