I did not "Demand she leave the church". I asked that she not go to church with my kids and another man while we are still married.
What kind of mixed message does this send my kids? What does it say about the teachings of the church? The respect for leadership? How am I supposed to feel? It is completely unacceptable.
You cannot co-operate with someone who is completely insensitive to your feelings and could care less about how their actions affect you. When dealing with a person like that, you need to establish firm boundaries.
There is no difference between "Co-exist" and "Ignore". They are the exact same. I am not trying to "Justify" it. I believe %100 that it was the right decision and that the advice being offered on this particular subject is just terrible advice.
If put in the same situation, I would do this again.