I haven't really been following your situation for long, but from what you say, a lot HAS changed in the past 2-3 months. What is different is you. I don't think she's gaining "power." It sounds like she's frustrated about her own lack of power, that she doesn't have a sex drive and it bothers her. She also can't help but see that you've made real changes. She just can't admit it. She's trapped and doesn't know what to do.
You, Dog, are getting stronger. This is REAL good! But, I'm sure you would use that strength to reach down to her and raise her up if you could. It sounds like she can't accept that yet so you just need to get stronger and better inside your own skin. This is one journey she needs to take by herself for a while. It sounds lonely for both of you. While she's doing that, you're using your time wisely. I think you're on the right track.