Tough situation, Kathy.
As someone who has been there, I'll give my thoughts. Please ignore them if they're not right for you.
Sound like she's telling you she wants the unvarnished truth. As her spouse and someone who loves her, perhaps it's best you honor her wishes. Yes, it risks your marriage, but what is a marriage without trust and honesty?
However, you also have a right to insist that she allow you to be yourself, wherever that may lead. Again, it would risk the marriage, but what is a marriage where one is afraid to let the other grow and change?
You also have a right (others will disagree, perhaps) to insist that she face the reality that you are already a woman (if your profile gender box is any indication), in which case her only choices will be to remain married to one or not to remain married to one.
Good luck. I hope this helps. I've been there and I know what a rough ride it becomes.