Heck, you've heard all the advice about the pitfalls of leaving your respective partners with young children in the picture.
Now I'll tell you about the chains that the Watchtower society has her draped in. You think her problems will end when she leaves the unhappy marriage? They will only start.
The WTBTS WILL NOT reinstate her with open arms if she leaves her husband for you. You're worldly.
JW's DO NOT hand their children over to people condemned to die at Armageddon. That's you and your sweetheart, if she leaves.
So she will be MENTALLY IN, separated from her children and her faith. For you.
NOW, ON THE OFF CHANCE that you two are loving people caught in a device not of your own making, who can love your children BETTER THAN YOUR OTHER SPOUSES, how in the heck are you going to convince the aggrieved spouses to just walk away and allow the two of you to live together in bliss?
I'm sorry. I just can't see this working no matter how many ways I turn over the rock.