I doubt it’s about you, BTW. It is probably TERRIFYING for HER to feel like she is different from “the norm”, whatever that is.
Imagine being her age, feeling what she is feeling, knowing that embracing who she is opens her up to a whole host of vulnerabilities…and on the other hand, knowing that if she isn’t true to herself…the pain of living a lie…what will that do to her?
The whole thing is very scary and unbelievably difficult, don’t you think? I would imagine anxiety of that magnitude would extend to anyone she chose to share it with.
I don’t think you are giving off vibes. I think she is facing something monumental and she isn’t altogether relaxed about it and I imagine that every time you assuage her fears by embracing her for who she is, you lay a little of that fear to rest.
But she is still young. Give her time. She will remember you as her most important support through this. Identity is everything. Getting there is scary.