I thought I'll share an update here.
My wife and I have been talking about this off and on for the past month since I posted this, but there was one particular evening when it really went out of control and we both ended up crying buckets. In a way it was good because I think we ended up saying a lot of things to each other that we should have said before. Not hurtful stuff or anything, just things that showed both of us how serious this issue is for both of our lives.
For example, I really opened up to her about how I had never liked how I looked, never cared about my appearance, body, health, even how long I lived etc. I don't think I'd even been complimented on anything about my appearance by anyone else until she did it when we were dating. I told her how I had feared everyone around me in school, college etc and there was no way to know or put in words what I felt. Maybe that's why I hid everything so deep that I hid it from myself.
She said she could understand but that this was going to destroy our lives as we knew it, that she had dreams for our future together, and that maybe she should have just married someone else, or that she should go now and find someone else. I said that would be good, but then we also spoke about some of her creepy 'friends' who hit on her even when we were dating, and that it would be really hard to find someone else now. More importantly, we loved each other and were just so used to each other that we wanted to be with each other, no matter what. At one point, I ended up saying I'll get out of this, I'll go get a haircut right now etc, but she stopped me (thank god for that).
We also spoke about kids. We plan to have a biological one now (maybe in the coming year or so) and adopt another one a few years down the line. She had been telling me that I should try to get out of this 'phase' or at least put off transitioning until we were much older and had less to worry about, but then I explained that it will only get tougher with time, and I seriously didn't know how long I could take it. Eventually, we agreed that I'll put off HRT until the biological kid arrives, but also that by the time of the adopted kid, we would both be mothers.
Not sure if things will remain as they are now or get better or worse, but at least we are still sticking together and intend to have a family together, and she also knows my transness isn't going away.