Ken said he liked flow charts, so I laid it out pretty simple.
I think Ken's fear is that his wife will decide to give b a spin... Ken, the more reality you throw at her the more b will look like a fantasy that won't come true...
I suppose that's MOST people's fear.
But I actually think the LBS has their own thought process, and too often it goes something like:
a. Do nothing; leave her alone, and hopefully she'll realize OM is a predator and a jerk, and come back to me;
b. Do nothing other than GAL, and hopefully she'll see my changes, drop OM and come back to me;
c. Aggressively attack the affair via exposure, take a strong legal stance, and lay out (and enforce) firm boundaries, which is all really scary, and would probably only push her into the arms of the other man;
And so they choose "a", because it's the easiest path. Or maybe they choose "a" with a smattering of "b" thrown in. That one involves some work, but the work is just all on YOURSELF, so it's still non-confrontational, and easier.
What they need to realize is that it's the combination of "b" and "c" that stands the best chance of success.
OK, I'm giving myself a whistle on that one. I had a spare laying around in the drawer.
I had a spare laying around in the drawer. 
