Katey, sharing this part of you with your wife is not related to control or lack there of of cross dressing. It's about honesty. Thats it. I didn't dress often nor do I now. I simply reached the point that I could no longer lie to myself that she was better off not knowing. You can't appreciate it yet, but AFTER you come out, you are a different person.
Or they may be able to handle it. And THAT is the chief point. Don't presume it's too late.