My wife and I were married 36 years when I started cross dressing at age 74. It took me about 5 months to tell her. It was LIBERATING as I was no longer lying to her. She's not a fan, but is extremely tolerant of it. She pretty much said this is my home as well as her home and I can do whatever I want in my home. We rarely talk about my CDing even though she sees me dressed every evening and I sleep with a bra, forms, and nightie all in place. Her only initial concerns were to ask if I was gay or if I wanted to transition. Neither are the case. Her hard boundaries are family and friends are not to learn about this part of my life. Her soft boundary is she prefers not to see me in makeup and a wig. She's seen me with makeup and a wig maybe 4 times. I try to honor her wish in that respect, so I wait until she's gone to bed for the night before I throw on a wig and lipstick as well as other makeup. I do the wig and lipstick probably 6 nights/week and full makeup once every 2 weeks.

All this is said to suggest you may want to talk with your wife about your hobby. Like you, I've mentioned dressing as a woman for Halloween. The suggestion was not well taken so I didn't. But, with an honest, open discussion about this part of your life, you'll really be no worse off than you are now. Understand, you are lying to her by omission. If she refuses to accept your CDing, stay in the closet and don't tell her you're continuing on with it. You will still be lying to her, but at least you tried to bring it out in the open.