I have gotten to know your situation a little bit more closely over the last couple of weeks, I missed some of your story when you first came here.
Some exploration...
I have someone in my family who in recent years came out of the closet as a homosexual (I know that's not you, bear with me). He had been married for 15 years, had a couple of kids. They actually tried staying married for a couple of years to see if there was a way they could make things work (I don't know what the options on the table were). But, one of the things his wife said to me at the time was "I can do a lot of things, but I can't be a male". And it was a heartbreaking situation because I believe they truly loved each other and really wanted to find some sort of way they could keep their family together. It really took them two full years to finally separate.
So, with that lens of their situation, I know you had a counselor who basically through their notes made some of your wife's worst fears come to life. That you were deeply in love with the AP, a transgender woman, and that it was selfish of her to come in the middle. You took some time to get out of the fog and that added hesitation was just too much for your wife to bear.
I don't know anything about your AP, but any transgender women that I have ever come across has more make up skills, more focus on their appearance than other women I have known. I know that's stereotypical to say, but I have not seen any contradiction of that stereotype, maybe I am sheltered. So, when I think of your situation I imagine your wife sees you with someone who is kind of the epitome of how I might think a man would want his ultimate woman to look? Like porno queen sex on heels.
That's kind of intimidating if that's true, right? It becomes an impossible job for you to reassure her that she is attractive to you because of how opposite the AP was. I actually have seen similar things on the BS board when the AP was a different ethnicity and that is the ethnicity their spouse has a preference for. I imagine those people thinking, well I can be a lo of things for you but I can't be Asian.
What I am building up to, is how do you undo that? And then to have your counselor make notes affirming of her of her worst fears. Now, understand I feel all of us WS have something steep that we have to find a way to bridge, so in that way you are not different. But, do you feel this is ultimately what has put this as a deal breaker, or something else? I also think because it could be considered somewhat "deviant" by some people for you to have a relationship like that, even in the fact you were still paying for sexual sessions but believed you were in love.
I don't think what you did is worse than what I did, so I don't want it to come across this way, but there are many things that can impede a BS from choosing R. Sometimes it's an unremorseful spouse, and maybe you did take too long to get there for her and that was the straw that broke it, but you are certainly there now. Sometimes it's just the idea that you cheated. Sometimes the BS has video or other evidence that they really can't see the WS without being creeped out.
You just have some very specific things here that I have not really heard how you go about addressing that with the BS. I think it's because you were separated (or close) by the time you got here so your posts of course are focused more on concentrating on being there for her without being pushy, your work, managing yourself on your own. Those would of course be things that are front of mind. But, I want to know if you think this is unsurmountable and if so why. Is it aspects of the affair itself or is it how you conducted yourself after or a combination of both? I know it wasn't long ago it seemed like maybe you had too much hope to get back together to have it crushing back down with she gave you an inch and you could see a mile in it.
I guess what I am also getting at is - I think it's commendable that you continue to work on yourself and have a true focus of being unfailingly loyal and keeping hope that you keep going and she will see it. But, in another way, I sometimes wonder if you have an accurate understanding of whether this is a deal breaker and if it is prolonging it to a certain point could actually just be more detrimental to both of you. I can't really tell, so this is not an assessment, this whole post is a lot more of a question.