It depends on the type of DADT.
Some wives know about the CDing and they recognize that their husbands need to dress occasionally, but the wives prefer to not be involved. If the wife knows that the husband dresses when she is not around and this doesn’t affect the quality of their marriage, then DADT works for them. This arrangement is what I think of when people mention DADT.
If the wife knows about the CDing and she wants her husband to not dress, then CDing behind her back is not DADT. It is lying. In this case it is imperative that the couple negotiate some sort of compromise. The wife needs to understand that the husband cannot stop, and so allowing some time for the CDing when the wife is not around will allow the husband to not lie about it. In turn, the husband needs to respect his wife’s difficulties with accepting the CDing and he needs to not go overboard with it.