Gary Neal? Wow!! Welcome back!! Nice to hear from you as well as the update.
Sorry about your divorce, but honestly it sounds like it's for the best. Wifey has moved on, you should too. Get a lawyer and get the divorce. Please have Will drawn up as well, so your kids get what you want instead of the (ex) by default if you drop dead tomorrow.
The silver lining to all of this is:
1. Your children are not part of this dumbass cult.
2. Both you and your ex are OUT.
3. Freedom!!! (from cult and your cheating ex)