My wife is my bff, soul-mate and reality therapist of some nearly 40 years. She knew from day one I had "Gender Issues". I knew from day one she is not one to want to get to "tied" to another person nor wanting the government to get into her bed. (Yes, she was/is a hippie chick). She was also divorced, as was I... eventually. Before we allowed the government into our bed some 10(?) years ago there was conditions....
We never were "Exclusive" in the past. She had other lovers while we dated, as did I during our On again, off again romance. So her wanting a non-exclusivity agreement was not out of character. Sex is Sex... Love is different. So having the hots for someone and wanting to go to bed with them was OK... as long as the rules were obeyed.
Well... if the rules were followed by her which I have no reason to believe they weren't, neither of us exercised that clause. Her greatest fear since me dropping the T-Bomb has been how our relationship will change as I grow as a person, as I learn what it is to be me. She fears that the day will come that.... I do fall in love with a guy and not just discover the joy of being a woman in the arms of a man. To be fair, she know how much of a romantic I am and the odds are slim to none I'd be with anyone under the influence of lust
TBH - after a few years on HRT, as she predicted, I cannot honestly proclaim I'd never want to be be with a guy as a woman. And then... then there are the dreams of just that. Me with a male love interest.
We take it one day at a time.