I think affairs do bring a particular layer of issues to the situation, that need to be addressed with specific strategies and tactics. We can debate all day if MLC causes an inordinate number of affairs, or if affairs and their chemical-awashed brains cause an abundance of MLCs, but the immediate obstacle is the OM.
I personally think you have to address the adultery before you can address the MLC, and when there is drug or alcohol abuse involved (just speaking generally), you have to address THAT before you can address the adultery.
