I have wondered this as well.

btw - I am terrible at making friends. I explain it to my T as, I'm the person that there's nothing wrong with, I just am not thought about when other people are thinking of the "who" to invite to their things so I don't get invited. It's not even that they don't like me. I'm not sure she gets it. And yeah, I thought I was making progress in 2017, then I had surgery and complications from surgery. I reached out to those potential new friends and got silence. They knew I had surgery. One was my personal trainer that I thought might move into friendship zone (I was seeing her 2x a week for over a year, I had shared a lot of personal stuff and she had shared some back). After that I went through a period where I felt like see I can't even pay people to be my friend. Ok, that still stings.

I did get another personal trainer because I had/have goals that I cannot reach on my own. I was/am much more reserved with this personal trainer and we have no friend like interactions.

Anyway, kind of feel like going off topic here. I wanted to add my voice to this possible theory. We won't really know until the 2 yrs are up and you are able to contact him.