Becca - I would wait for a while.

In your first post in this thread you say:

I want to marry her, but I'm afraid that my cross dressing urges will become too much for her to handle and she'll leave me. I don't want that to happen, because nobody else knows about me CDing.

I don't like the fact that she is the only other person who knows of your CDing is the reason you give as to why you do not want her to leave you. Surely you should not want her to leave because you are truly in love with her?