I don't think it is always a marital problem that brings this on.
My H will be the first one to tell you that we had no problems in our marriage! He has maintained to others and me that the marriage was good, no problems, and it had nothing to do with me at all.
You have to remember that if there is OW involved, many times, she knows how to prey on them, and eventually goes for the jugular and has them trapped into thinking OW is the love of their life when in reality they are not.
My H's OW like all others, lacks morals or why would they continue to break up families? H is not out of the woods on this but OW are generally pretty selfish and lack self esteem and only think about themselves. OW has never played a part in our kids lives and in the three years they have been seeing each other, not once has she ever met our kids and she never will.
That is beside the point right now but it just is not about something that may have been lacking in a marriage.
I believe something in their brain triggers this behavior, and it builds and builds. Most of the MLCers are people who would have never dreamt of doing what they are doing or have done.
The Bomb: 08/05 H moves out: 06/2006 H moves back: 01/07 & Out again: 01/07 H moves back: 03/08 & Out again: 04/08 H moves back: 05/09 & Out again: 07/09 Divorced 08-12 Kids: 22, 20, 19