If you love your wife do what ever it takes to save your marriage.
Maybe the elders don't deserve to know the truth about your feelings (theocratic warfare). I would take it very slow and try to win your wife back with subtle points about the WTBS this might take a while.
Take care of yourself and your marriage no one else will, especially not the elders.
At the meeting play dumb, obfuscate, procrastinate, say your weak, stonewall. Who cares what they think!!!!!!!