Here is a link to an article regarding EA/PA in good marriages via the "new infidelity".

Also, this is discussed at length in "NOT Just Friends" by Shirley Glass.

If you haven't read the book I highly recommend it.

-NOPkins

I will ferret out an affair at any opportunity.

-An affair is the embodiment of entitlement, fueled by resentment and lack of respect.
-An infidel will remain unreachable so long as their sense of entitlement exceeds their ability to reason.