Yes, it’s there, but not in any way designated as a pronoun preference. The only indication we have that it might have ever been so designated is @Colibri saying…
apparently in her bio on Twitter she is still using “xo.”
… in reference to what pronoun she was using before “she/they”.
What I was saying is that I don’t know why Colibri thought “xo” was related to Halsey’s pronouns in any way.
Powers &8^]