"I would do anything to keep her from leaving and her boys finding out about all this ."
That's all control. You can't control that. You can't chain her down and tell her not to leave.
"I scares the hell out of me knowing she is seriously contemplating devastating her own children the same a she has done to me . I can see and feel the pain that she has put me through but i cant believe she would do that to her own flesh and blood"
One very important thing to understand is that she doesn't think she is hurting the kids. She thinks that what she is doing is going to help them in the long run because she will be happy.
You may not agree but it is what she believes. Can she be influenced to change he mind down the line? Maybe. But that is up to her. You have to let go of trying to control the situation.
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.