Hi Eva,
The big reveal IMHO is a personal decision and also one not to be taken lightly and should only be attempted after much soul searching and self-understanding. It will go one of two ways: (1) acceptance on some level (e.g., complete . . . go get your girl on to DADT); or (2) exit visas. There is no grey zone.
The one thing I note in your post is that you said you just came to cross dressing in the past two weeks and have found a zest for it . . . albeit I think you have been dabbling for some time to some degree. If you really and truly feel this is something that will not go away, will consume you on some level to the point where you find yourself ignoring her, unable to focus because the thought of dressing is so pervasive you can't concentrate, need Eva time in varying degrees and stealing a private moment or two won't suffice . . . then perhaps a discussion is in order. However, if you are truly not sure if this is a done deal and it may sputter and die once the excitement wears off (it could happen) then I have to ask why risk a big reveal for something that is so new to you?
If you choose to tell her, be honest in disclosure on what you hope to achieve and work together to create mutually agreeable boundaries (one person should not have all the power). Most importantly, keep communicating once the information is discloses to avoid any misconceptions (on both parts) that things are or are not still okay . . . talk, talk and talk some more as it is the only way forward. Most importantly, it is your decision and while we can give advice it is from a position of personal experience and personal circumstances which may or may not be the same as yours.
Cheers
Marcelle
