So, just to find out, you DO understand that whether your W is MLC or vanilla WAS, the work for you is the same, correct?
BOTH the WAS and MLCer will blame you and justify their leaving in many different ways. Some of it we call, "re-writing our history" where they have held onto and point out all the bad things and seem to have completely forgotten the good times, or have skewed the good times to somehow have been negative.
There is much in common between the two, so the work is the same.
The difference often is, with a WAS, if you make a change and stick to it long enough (a couple weeks or so, so that it becomes a habit and not a tactic), you may see changes in your spouse. You can then determine if those changes are negative or positive and adjust what you are doing, accordingly, if necessary.
In the more general sense, MLC takes a lot longer AND you won't necessarily see any affect due to your changes. Or, any change that MIGHT have had an affect on a WAS will just cause the MLC to ignore us more or spew at us, etc.
So the important thing is, do something different, do a 180, whatever... and do it consistently, for a long enough time to see if there is any affect with your W. If there is no apparent affect after a couple weeks, you can keep doing it, but also... try something different, again.