I really feel for you guys and for all of the LBS here who've had to deal with infidelity.
The OM stuff isn't so bad; it's just the particular OM my wife chose. The guy has man-b00bs so big that he needs a bra and he can't count to 20 without using all of his fingers and toes. I was replaced with that?
Holy hell. In my case, the OM was in identical shape and roughly the same size...he just had no hair and looked like a criminal (fits the mold)
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.