I am absolutely dead against having children under the influence and custody of a believing Jehovah's Witness. That is often a fatal mistake. If not literally fatal, socially fatal. I have experienced both. I have experience living with a practicing Witness and I can tell all here and now I would not repeat it. You can be a Witness or you can be my wife, but you can't do both. No negotiating. A believing Witness puts the Publishing Corporation first in their life. Spouse, job, finances, health, welfare of the children, all come after serving the corporation. That's not the life I will accept.
I would give the Witness spouse a chance to quit the affair NOW and if she refused, I would go to the attorney the same day. A Witness spouse in love with the Watch Tower Publishing Corporation is having an affair. No different than with a person. Only with the affair with the book company, they flaunt it in our faces. They want to make us feel guilty because we don't approve of their affair.
I only see three top line elements,
1. Give her a chance to quit the affair and if she refuses,
2. Take bold action to protect the children from her (them*),
3. Go into damage control mode to protect finances and get control of debt acquisition because this also protects the children.
(*Those who control her control the children.)
I demand to be in first place with my wife. If I am not, then the marriage is already over. The time for emotion and wishful thinking is past. I only have one life. I insist on enjoying it and living it the way I want. GaryB