Even though your wife knew of your cross dressing, she really did not conceive the extent of the cross dressing. She was predisposed to have a negative view of the revelation. Sure, tell a woman you like to wear women's clothing. What did that mean? Throw on a dress? And, that's all. Or, the entire deal.
It's not just the wearing of women's clothing. It's the psychology behind it. If a man has absolutely no desire to cross dress, and, his wife knows that, I bet she would be more agreeable to helping him dress up for Halloween. That's just a goof. Catch him, intentionally or unintentionally emulating a woman, that's different.
Maybe Kelly's wife felt lousy, and, did not remember to call ahead before arriving home. If a woman realizes her absence from the home may give him the time to dress, then I would hope she'd call home before arriving unannounced.
One reason to not get caught is the plain fact the wife will never see her husband in the same way after seeing him en femme. Her self denial has been shattered.