Girls, How can I tell my wife that I occasionally like to cross dress in private?

I've been married to my wife for 4 years now. She's the love of my life. But I've never been able to tell her that I like to cross dress when she is not around. It's something I've done for a long time. I just find it enjoyable to see what it would be like to get dressed up like a female. I know she's not going to understand. She thinks a guy who cross dresses is not attracted to women. I don't know if I'll ever be able to tell her. What should I do?
Girls, How can I tell my wife that I occasionally like to cross dress in private?
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