Hi Amoré:
I might suggest that whatever your wife's motives are or aren't, you can't put them before your well-being. Given the history here it's unlikely that you'll get it figured out without a huge cost to you emotionally and physically in the near-term. She may not know either.
Sooo, so for this and other reasons making pretty big decisions just now, like going off/on with HRT, isn't something that's going to necessarily help and may create other major issues. Go slow; talk this over with your psych/medical team (PMT) and do so regularly. As time passes your views will shift. How much and in which direction? Time will tell.
I hoping if you will take on a little more stability with less concern for the future beyond today and tomorrow, and that might make more common and therapeutic sense. Only you may know for sure but I'll go so far as to suggest you may not be the best judge of that without the support of your PMT. Give final decisions some time.
There is bright side here and that is you are sharing regularly - that's terrific and shows you care a lot about yourself and others. Of course, we here on the site care too! Why? Well, you are a special and beautiful person who is facing one of life's biggest mysteries, and you continue to do so. That's inspiring to others and us.
Please take care, love yourself, and begin the process of worrying less; worrying makes no difference at all in the outcome. It's easy to say this and harder to do, but you are able to do so if you can make the little things occurring moment to moment important, even to the point that they become part of your plan for today and tomorrow. Keep it simple: if you like to walk go on one; if cooking is something that interests you then cook; and so on. Those things then become the important things in your life as they should be. We forget that in time of stress how it's the little things that make a pathway for the big ones.
I know this probably all sounds silly, nuts, off the rails, etc., but truly my dear when I say simple I do mean it. When I started doing that I began to get little snippets of time back in my life that were normal and satisfying. They weren't big life events but I didn't need anymore of them on my event horizon; he||, I had plenty of those already and so do you.
Hope this helps and I'm sending you and yours my love,
Rachel