Rakkety Tam said
Sex: Auri is Auri (I understand that the Wastelands inst going to be a jewel of understanding for gender-queer individuals so just call Auri by whatever pronouns your characters see fit. She/he/they/puppy/pineapple take your pick, Auri is too clueless to care)
Genderqueer is a really modern thing of the twenty first century and while I do not doubt that, for the sake of originality or identity you might want to provide Auri with a unique sexuality. But I find this rather unfitting for any setting that isn't contemporaneous (postmodernism) or futuristic, adding to what you said "the wastelands aren't a jewel of understanding" and Auri coming from the wastelands himself (even more added the fact that you have described her as "gullible and ignorant") then It's not believable how such a character have reached the conclusion of being non-binary
WHAT might solve this and still be in character would be saying that whatever incident caused him to become crazy also made her forget about his original gender or that she became unaware of what he is. It isn't your character really, just the term "genderqueer" itself which bugs me in this roleplay in specific
Of course, this is all a harmless suggestion
This is a bit personal, but since english is not my first language, I get a bit confused when I see "they" used for singular, so, if you don't mind, of course, could you use something different to refer to Auri? Only if you don't mind, this is just me, there is no problem