Wendy
I have not read every post here, However I will say you certainly both need to talk. I really can understand how you feel right now, and to a point I can also understand your wife point of view and actions too. ie I sit here a 48 year old man, that enjoys dressing up as a woman, even I don't understand it, so I really can understand the difficulties a Woman and more to the point a Wife would have.
There really is two side to this, there is your needs and desires, Sadly many do not understand the drive this "hobby" or should I say affliction, has, ie I had not only the desire to not only dress as a female from a young age, but pass out as one as well (and did so for the first time at the age of 15! Yikes!) I'm not say that as a boast, and I realise now just how bloody stupid it was to do it, but all the same, it just shows how the desire to crossdress and go out, is strong, and also difficult to ignore too.
However there is also your partner, and her fears, Yes what she has done is very, very wrong, but I can feel for her as well. if you have been hiding away, keeping a secret in a way from her, even if she knew you were dressing, maybe what you where up to,and doing was causing the problem ie the time factor, or the fear of the unknown! ie we can very much agree to things, and yet, sadly both have totally different understanding of the meaning of what has been agreed too? ie her mind will have been working overtime, whilst you were hiding away with your "other woman" so to speak.
Personally I see her actions as one of love, over one of hate, ie she didn't just ask you to leave, and she tried to remove the source of her problem. She probably knows she has made a big mistake, she probably hoped all would be fine and dandy after doing so, however it probably clear to her now, thats not the case, so your next step, really to see how she feels about her action, not US!!! ie if she relises she has made a mistake then hopefully that will give you a door to talk to each other, and see how the ground lies, avoiding one another will only put more anger in your mind as time goes on, and fear in hers, so you really need to talk.
All I can say is take time to look at her actions, and the period leading up to them, Was this just a action of malice, or was it one of desparation and dispair, only by understanding how she feels fully, will you begin to understand why, and only by talking to you, will she understand your hurt, and frustrations as well.
Sadly crossdressers are a Beast unto themselves, we live in a dream world mostly of our own creation, some are luck and have understanding partners, others have partners that know but don't partake, others have ones that are totally in the dark. However there is a forth option, and those are the ones that know and are told to like it, or lump it, and you really need to know which one your wife felt she was. if she did feel she was the forth option, then you can start to see reason for her action. (none of us are Saints!!!)
I hope for all the bad in this situation, some good will come of it to. hopefully it will give you a chance to talk, and her a chance to understand we do what we do out of need to do it, and not a need to be different, or deceptive or most of all hurtful. Many of those that have not told there loved ones, do so, to protect them, as they are just totally unable to do so. in reality they have no wish to lie or decive, in the perfect world, we would all be able to wear what we wanted. however you also must understand that wendy takes you away from her, and that being the case, it puts a slightly different light on her actions. therefore as I said the only way forward now is to talk, for both of you.
Good luck.