Trans people are actual people, not Thematic Elements That Underscore the Protagonist's Ponderous Musings About Mutability. It's stupidly disingenuous of you to claim, through your protagonist, that you are not making the protagonist's trans girlfriend a Thematic Element when you end up explicitly making the girlfriend a Thematic Element a few hundred pages later. Kindly fuck off until you learn the secret to writing trans characters.
Hint: It's NOT A SECRET, and you, being a published author of some experience and renown, should know it already. Here's the hint: you write about a human being with the attribute of being trans, instead of writing about the concept of Transness that incidentally has the attribute of being human. You can do it with your queer cis female characters. Why can't you do it with your queer trans female character?
Do you care about trans people at all? [Do you even known any?] Or do you just think that writing "tr***y" makes you grittier, edgier and more shocking? I'm going with option C, given your colossal cluelessness.
I am so disappointed in you. I am never reading anything you write again, which is a pity because I liked The Red Tree.
You do realize that The Drowning Girl, catalyst of my ire, is nothing but a flaccid, digressive, anti-trans Red Tree wanna-be in need of ruthless editing, right?