"And of course a large number of affairs, as documented by Dr. Harley and others, happen to even HAPPY marriages."
I totally don't buy it, and I've certainly never seen a case like that on these boards. Not one. There are plenty of cases in which the LBS creates a cloyingly idealistic view of the best M on earth while the WAS goes off the deep end as well, just in the opposite direction. But when people get back to a more objective place, I don't recall one case in which an LBS has said, "yeah, we did have a great M, the only big problem was the A."