M.J., your instructions for approaching a study leader is so much better than mine. My study did not last 2.5 years, it lasted maybe, 4-5 weeks! When I am in debate mode, I just go full-bore straight in. Not the best approach if you are trying to engage someone over the long haul. Bravo.
insearchoftruth, I sense your wife either is afraid of death, separation from her family after death, or yearning for spiritual fellowship.
Fears are tough to overcome because they are loaded with emotion and people tend to react in extreme ways. Picture a drowning person pulling under their rescuer, or a shrieking person standing on a chair...avoiding a mouse.
Fear is how the society gets even natural mothers to shun their own children (fear of death).
I deal with the fears in two ways. I always speak in reassuring ways about our ultimate future. I speak of Jehovah's great love and how only he can read hearts. I assume that I will be there in Paradise with my hubby. He's too kind to contradict me.
The other is humor. Humor can cut through fears and reveal the ridiculousness of the rules.