So, I decided to come out to my sister a bit gradually, by starting with "I have gender issues".
She and I have discussed gender identity alot, because she knows a trans woman and I've been her
"GLBTQ+ 101"-person. I've explained so much, over years and years, about how sexuality and gender identity are two separate things.
Still; the first thing she says was "Well, yeah, I was always confused when we were kids and you talked about maybe marrying a man, it always seemed more natural that you would marry a woman." (Background: I am grey-ish sexual, bi-romantic with a strong preference for women, and she knows that.)
I just... she knows the difference, she knows gender identity isn't sexuality. We've discussed my binding and packing and male presentation.
I ended up just saying "No. No, that's sexuality, not gender identity, where my issues are." to which she responded with a shrug and changing the subject.

I don't know where to go from here. I mean, she just changed the subject to christmas presents, while were having a serious heart to heart. Does she just...not want to know?