"I talk both D6 and D12 about how hurtful moms relationship with OM is and how inappropriate it is for mom to have done that."
That was inappropriate to bring your kids into this. You can't have them choosing sides. You're trying to control the situation. That is something you could have talked to them as they got older but not now. If it hurts you, how do you think it hurts them?
If you want to stop your W from Skyping the guy, lay down some boundaries. Take the computer away, something else but don't involve your kids.
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.