You should listen to stutter Talk, I think this episode in particular http://stuttertalk.com/each-moment-of-stuttering-can-be-a-huge-success-what-i-wish-my-slp-knew-about-stuttering-ep-499/. I will say though, some people aren't ready to talk about stuttering if it is bothering them and if that's the case some patience is needed. I'd make sure it's not bothering you or your wife more than it bothers her.