Thank you all who offered their insights. It means so much to me to have this community of like-minded brothers and sisters to lean on. I especially appreciate scriptural reference from JohnsonJones. There were many other thoughts from everyone ( too many to mention ) that are all making a difference.
I should note that had we had a good or even "normal" marriage up to this point her leaving would be much more easy to deal with. The fact is, she has been diagnosed with PTSD and Bordeline Personality Disorder due to her traumatic childhood and first marriage. We have been to several marriage counselors, with little progress. She refuses to seek treatment for it. Rationality and common sense are not really present when it comes to major issues. Without getting into details, I've been on the cusp of filing for divorce even before she officially left the Church. If it does happen, her leaving the church situation will only be a final straw, not the main reason.
I will talk with her again about our boundaries with regards to sharing our beliefs. She never truly agreed to not bad-mouth the LDS Church. Her response when I asked about it was " I'll respect your beliefs, but I won't hold back anything new I learn" in other words, I see that as meaning " no guarantees".
I guees I’m just wondering, given how difficult our marriage has been to this point, am I over-reacting? When is divorce justified? I know for adultery, but what about abuse? Physical abuse? Emotional? If yes, is there a scriptural or Church reference you know about?
I will I'll hold off on divorce and continue to pray and seek guidance Thank you again for your thoughts.