Been there done this.
Marriage counseling. It worked for us because our therapist was able to help us see that we still believed in the same core values. This is what you should be focused on. Core values. Write them out here for practice.
Don’t bother explaining your (un)belief in Mormonism. Don’t bother explaining your “I don’t really know what to believe” beliefs in God. Don’t bother explaining why you think Joseph Smith ate tacos on Thursday instead of Tuesday, or why Brigham Young was wrong for banging 365 women in the salt lake basin territory, or why you think DoTerra is the devils oil.
Your church beliefs don’t matter here.
Here’s what matters:
You believe that you and your wife are entitled to a loving relationship built on common core values such as honesty, loyalty, commitment, hard work, happiness, and her ability to get her nails done on a regular as needed basis.
Communicate that you are glad to see the world in a new light that it is beautiful and full of opportunities. Yell her your honesty feelings about living life to the fullest with her along your side through the journey.
In essence, your wife doesn’t feel safe because if you’ll turn on the church and your testimony, then what stops her from thinking you will turn away from her?
The church instilled fear in our families and loved one. It’s real fear!
Communicate to her that you haven’t given up on your past, the present, nor your future as a couple. That you plan to work together to accomplish your dreams and ambitions in this life. You’ll have differences because those are meant to strengthen your relationship and cover for each other’s weaknesses.
I remember a post about Mormon women’s fear that comes to mind and will have to go find it. It might have been on the old board though. Alas probably had the best advice on that post. I’m sure she’ll respond here because that’s what she does best. Edit: I think this is the post I was thinking of.
viewtopic.php?f=4&t=3849&p=52079
In the end, our therapists helped us see that on the Mormon surface our issues were deep, but at the core we still held shared core values. She also pointed out (being LDS herself) that that isn’t an ideal situation given the surface level judgement and culture of the church so she asked me to determine what I could commit to to help ease that pain for my wife. I realized that I needed to continue to attend for appearance sake and not make her a church widow. I’ve essentially become a 2 hour Mormon and that’s enough. 120 minutes give or take the 5 minutes we are late.
Deep down she knows I still have my values and we trust each other implicitly.
Our therapy was based on the Gottman emotional house concept.
https://www.gottman.com/blog/the-sound- ... love-maps/
Here’s a picture. Note the first level of the house is to build Love Maps? Not build belief maps? So package your beliefs into core values that support building your love maps.

“It always devolves to Pantaloons. Always.” ~ Fluffy
“I switched baristas” ~ Lady Gaga
“Those who do not move do not notice their chains.” ~Rosa Luxemburg