Yeah tbh that part isn't suspicious to me. I guess I was just surprised to see something like this offered so explicitly, it's the kind of thing that you don't really expect to see outside of a movie. However, I also saw this yesterday, so I guess its not an outlier:
https://twitter.com/Eliservescent/status/807785460026273792
Hmm... I have a few women friends who would use (have used) exactly that first phrase about themselves. And to be fair, they've mostly been right. Plus she wrote extraverted with an A, so I'm willing to take her word for it.