The female sees her male partner as needing his “fix” while he begins to realise that there is more to this than a fetish, habit or "hobby". In this scenario no one really comes out a winner. I am not saying that it cannot be done only that both need to add a generous dose of water to their wine to make things work.
I understand and feel for both sides completely which is why I would never enter into that type of situation again. She wants and deserves a normal man and he has the right to honour a transgender nature which isn’t going anywhere and is not particularly welcome.
The only way this partnership can truly work is if she is more than just tolerant and he is not going to transition (presuming of course that this is a make or break limit) and can move back and forth between presentations easily and readily without being made to feel guilty. This ideal situation necessitates that the woman be bisexual or at least can look beyond the clothing and see a whole person.
All other scenarios are variations of both sides tolerating which I will personally never accept again as I don't just want to be tolerated and shouldn't expect anyone to. I would rather be permanently alone.
Let's be clear: absolutely no one is at fault here but the reality is that you have an unnatural fit taking place where potentially one or the other will tire of the situation and leave.
I have been in that scenario myself and have read enough about the situations of others to know how this works.