I wonder if one of the key reason most crossdressers encounter spouse opposition is the unintended, but perceived, thought by the GG that if she goes along with the crossdressing husband (who , after all, is wishing to impersonate a woman) , that makes her sort of a lesbian.
Naturally, none of us would wish or imply this directly, but I do believe that women have this subconscious concern. What do others think?