It must be really difficult if you been married for a while like 10 to 20 years then halfway through that marriage you become a crossdresser, how you tell your wife that must be hard because I don't think she would believe you and probably think you been lying the entire time.

Honesty is always the best policy, if your one that's going to get married then all this stuff should come out before the marriage or if your dating someone then just be open and honest about it all that way your partner can make his or her own mind up for what to do next