About the question of how to handle if MLC or WAW,
The beauty of this process is that you behave the same. You can only control your behaviors, and for either they are the same.

The difference is that with MLC there is a phsychological reason for the WAS behavior, (that's the good news) and it will be a much slower process (that's the bad news)to come home, if they ever do. The if they ever do is for both WAS and MLC.
With a WAS you can expect results in a somewhat timely manner. Less than 1 year. For MLC it can take 1-2 or 3to 5 years to resolve.
That is my take, and I'm sticking to it.

Bomb 1/06
D dismissed 11/07, attempt reconciliation. Premature.
Divorce final October 31, 2008.
OW looks like bad history. Over.
Still hopeful. Baby steps.
In R with my X.