On the other hand, I'd like to know what the OP, shtps, would think if they dated a transwoman without knowing she was trans and later found out about it. People have committed violent crimes because they didn't know, or at least claimed they didn't know as a defense.
So there is something there that needs clearing up. If you're attracted to someone and then later find something about them and decide you're not attracted to them after all, that's not the fault of the person you initially found atttractive. Agreed?