I have known individuals who were nude at home most of the time; yet never referred to themselves as a N or N. My X never referred to herself as a nudist either; even though she participated in social nudism. Those I ‘ve known who did call themselves nudists or http://rudefly.us were active social nudists, with AANR memberships and resort/club membership.
They used either term to “authenticate” their active engagement and dedication to the nudist philosophy.
I do not think you need trouble with defining or labeling your bare inclinations – unless you are actively seeking a social nudist environment. But in case you still feel the need to define what you do, I believe the term “household-nudist” is relevant to your circumstances. As far as your last question, it depends upon your aim. If you get a kick out of the concept of other people seeing your wife nude, then you definitely may be venturing into hedonistic territory. I appreciated follow being openly naked amongst other nudists; because her comfort with nudity was significant to me. As well as the acknowledgement of her attractivenes supplied me with some measure of pride. But it had little to do with some hedonistic impulse to exhibit my naked wife (p.s. I’m not judging you at all; merely explaining te difference).