I was reading this article that asked this very question and the best answer was this one below.. What I found interesting was this article was open for people to reply on their thoughts about the subject. Reading the replies a GG named "Kay" explained she was married to a cross-dresser but didn't find out until 25 years later.
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"One argument is that transvestism of cross-dressing is a way of offering a challenge to society’s preconceptions about gender. Some men cross-dress because they are unhappy at being men. Others didn’t mind the male state, but also like to put on women’s clothes occasionally. Some men cross-dress simply to make a passing social or fashion statement, and some because they have emotional needs that can only be met by the comfort that wearing women’s clothes gives them."
She ( Kay ) was so upset that he r husband hid the dressing from her yet stuck around another five years more before ending the marriage.. Below is a response to another ( Cder ) who felt "Kay" was wrong for what she did..
" Alan,
In response to Kay’s situation… How about this, If HE actually LOVED her(love is NOT unhealthy and deceiptful co dependence!), he would not have LIED to her for 25 years! Seriously. He manipulated her, hid who he was and what was important to him in order to keep her around for whatever reason, and then he springs this on her after 25 years! Really now? He robbed her of her entire adult LIFETIME with his deceptions. That is just cowardly, rude and selfish. If you read her messsage again, she STAYED WITH HIM for 5 years after he told her. Trust is not a priveledge, it is earned. It was the systematic 25 years of dishonesty that killed the relationship not his crossdressing per se. All of you secret crossdressers hiding the truth from your partners, Please take a lesson on ethics and integrity and courage. Your fear is your problem, your lying is your problem and then you victimize your unwitting partner for your own selfish needs. UGH!! My crossdressing partner when we first dated did not tell me. He chose to end our relationship after a very short time of dating because he did not want to lie to me, like he had to other women in the past. He did not know how to tell me the truth.(We are both mature adults in our 40′s) We remained friends, then out of the blue less than a year after we stopped dating, he told me the truth about his love of crossdressing. We became closer friends, and then began to date eachother again, with all of the cards on the table. I love my crossdresser and he loved me enough to give me the truth about his fears and his reasons for crossdressing to the best of his own ability to understand. As many of you know, you might not have all of the answers as to why you like to crossdress. I also love it that my partner shares with me his confusion and shows me all of the true aspects of who he is and what is important to him. Lying to and keeping secrets from your parter is simply WRONG.There is no acceptable excuse for it. Particularly something as important as this. Sounds to me like Kay has moved on, but has given the crossdressing community some sound and valid advice to be honest from the beginning. I don’t know what it is like to be lied to by a partner for 25 years, but I would think it would NOT be easy to come to terms with and just flipantly “move on” without some time for healing etc. Good for you Kay, you have set healthly boundaries!"