Well the difference is that she hasn't expressed interest in those other men. Just the one. She knows it.
Have you ever thought of asking her how it would look like if you were going out with someone in front of your children and what kind of example it would be setting?
IMO it sounds like your W needs a truth dart right now. For example, my W told me that since our D's miss her when she's not home, her solution was to give her full custody since it would be in "their best interest". I asked her point blank if she thought about the kids while she was carrying on with her boss. Or if she thought about them when she left. And that she told me herself that ideally it would be in the kids' best interest for both parents to be together. And so I challenged her to think of how she could possibly be thinking about the kids' best interest.
That shut her down pretty quick and she became alot nicer. I had read on another MLC site that sometimes since the WAs's moral compass becomes twisted based on their current warped thinking, the LBS should remind them about what the "truth" is and correct them when they are acting wrong or re-writing history. It's true you validate them, but up to a certain point. When they start making ridiculous accusations, it's time to step up.
And you say it in a "matter-of-fact" manner and not an accusatory one.
But that's just me.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.