I won't answer for Jess, but I can tell you why other wives have said the same thing.
Some of the CDers who become preoccupied (or seemingly obsessed) with the CDing, act like teenage girls. It seems as if it's the end of the world when they break a nail or if the hair isn't just right for example. They (some) get into hissy fits when things don't go their way and it seems as if all they want to do is talk about and do girly things. Some of the CDers actually change their behaviors when dressed (they become all gushy and "tee-hee"-like). And most wives don't want to be married to someone who behaves like a teenage girl. One GG told me once that she would not choose to be friends with high maintenance genetic women (the women whose priorities seem to be the shopping, the grooming, etc), and so why should the wife appreciate those qualities in her husband.