I know that this differs widely from one individual to another, but the essence of a person is in their soul (mind, emotions and will) regardless of which particular body parts they do/don’t possess. So, I would be ok with whatever made my partner at peace with themselves.
The definition of gay or straight is totally a construct imposed by society. If my partner changed their sexuality it wouldn’t change me. I’m still the same person. The fact that society would then re-label
me based upon someone else’s changed gender expression is ridiculous.
Anyone having a problem with it, well, it’s their problem, not mine and I refuse to make it mine just because of what they think.
I realize that some folks have been so conditioned to society’s expectations that they would totally be unable to handle it. For whatever reason, I don’t feel that way and I feel fortunate. It’s difficult enough to find someone with whom you are compatible, someone who “gets” you. So I would hate to just toss it away.
I realize that someone’s desire for sex change has been preceded by much heartache, self-questioning and soul searching. I would support them in their decision. There will be few enough in the rest of life who will.