Some people miss their friend Tony. Yes it's me.
The other day my BPD lady friend said something similar to me via text. Out of the blue she was like, "I thought we were friends". And went on about how she never meant to mislead me and we're nothing more. Something of that nature. I had to remind her that according to my devices going back 10 years I haven't called her a single time. Of course I did tell her I'm in a relationship and last time we spoke verbally a week ago she hung up on me.
Not saying you and her are the same. But why ask "I thought we were friends" ? I think I've been decent since I started visiting again.
It sounds like you didn't spend the time and effort to hear her concerns further than this.
I was making a quick reference to someone who said the same thing to me just last week. We spoke in depth, via text for a change. She was kinda testing the water after she disrespected me.