I was raised by a mother who highly valued honesty. She had a highly accurate B.S. meter. She always told me that if I didn't tell the truth things would be much worse than if I had. Especially if she found out about it which was very likely.
When I was 15 years of age, three of my friends and I decided we were going to have a little party involving alcohol. This was in a small Idaho town in the morcor. We were all Mormons.
Cut to the chase, I came home late and inebriated and was caught red-handed. The next morning my mother asked me where we got the beer. I told her the truth. She called two of the mothers of my friends and spilled the beans on them. To say the least, those three friends were extremely upset with me. And they made sure everyone else knew what they thought of me.
For the next full year I was utterly ostricized in my Mormon highschool for telling the truth to my mother. It was one of the most difficult lessons I ever learned.
I learned what it meant to not only be alone but to stand alone.
I learned what true friendship really looks like. People who really and truly care for you have a great appreciation for knowing that they never have to worry about your dependability and integrity. They know you can be trusted.
The church doesn't truly and fully appreciate honesty. Loyalty ranks much higher than honesty. In reality you can believe almost anything you want in the church as long as you keep your mouth shut and pay your tithing. They really don't care. But who wants to live like that?
When I realized the church had an integrity crisis, I couldn't continue to hold any calling in the church that required teaching what I didn't believe. I told my wife what was happening at the time and it did create some stress in our family. After about a year when she realized I wasn't going to go out chasing other women or begin drinking she began to realize there was much more to this than what her initial fears had been. She knew I was still the person of integrity she had married all those years ago. Things just got better and better.
I would never say a person who hides the truth where the church is concerned is an awful person. Just a SCARED person. Someone who lives in fear carries such a heavy weight. It's terribly sad.
As the Savior stated, "Ye shall know the truth and the truth shall set you free."
Maybe in some cases it might be better to tell your wife how you feel over a longer period of time and in subtle ways that some things don't add up for you regarding the church.
However you approach it, I wish you the best. It's a hard, hard thing.