Interesting conversation...
I didn't get twitchy when I read "girl", simply because I read it as a creative piece coming from her own "me" space. She likes butch girls. Others like butch bois. Others like *fill in the blank.*
The word girl used to be insulting to me....back in the 80s and 90s when I was younger and working hard to stand up for myself, be independent, and be respected.
Now that I'm a crone of 50 (and, yes, that's a word I like for myself

), I am not offended by "girl" unless there's a derogatory or sarcastic tone included. I work out 3 times a week with a group of 60, 70 and 80 year old women....who all call themselves girls. I like it. In that context, it's embracing the youthful spirit and energy they feel....and I give a wave and a "see ya later girls...have a great day!" as I leave, just like they all do.
Since moving to South Florida, I've felt less "isms" than anywhere I've ever lived. It feels accepting....like whoever you are and whatever you do is all good. Snack and I sat at the beach one day, talking about this very thing as people of all ages, sizes, colors, etc. walked by. We were spotting Family...and loving that no one appeared to give a single rat's ass about what anyone else was doing. We were all too busy enjoying ourselves.
Living here...I've also been called "girl" or "lady" or "ma'am" more than I ever have in my life either, but there's no edge....it's just how people greet and talk here. I'm good with it. For me, context and tone counts for more than the word used (with a few exceptions).