This is a great and thoughtful post.
I have a ND ex-friend from my late teens/early 20s.
She'd say how close we were, how she was obsessed with me, how we had a special connection...
Her love and connection for me was unfortunately entirely based on me sticking to her script, paying attention to her, joining in her special interests.
Anything I did that was outside the script wasn't acceptable.
She'd say we'd had a great weekend together, the reality is I'd be frazzled as it was completely centred on her needs.
I was fairly emotionally vulnerable due to early family issues, so she felt she could pressurise me into having the same interests as her, started advising me what to wear, how to act...
It was like I was a "thing" or a pet to be trained into meeting her needs.
I had to detach due to this behaviour
Obviously as a young woman I was growing and changing and developing, and I didn't want someone constantly browbeating me or arguing with me that I was "wrong"
(getting incredibly angry and distressed amd trying to argue with me and dominate me if I want to do something different to her script).
Unfortunately she couldn't accept that I had a seperate existence to her that wasn't being forced into reading an obscure fantasy novel to "keep her company", or working in the same industry as her, or having an "alternative" appearance as she didn't like it when I dressed in a mainstream way.
Most of her friends now are online, which I suspect probably suits her better as she's less overwhelming!
We're all human and I hope she is well and content, but it just wasn't feasible for me long term.
I get the world must have been quite overwhelming and lonely for her, but equally it was pretty lonely for me engaging with her.