Good read!

Wow... This feels heavy. I had also been ghosted by someone I once saw as a close friend. For me, it was hard to come to terms that the person did not value our bond as much as I did. Therefore, I won't get any satisfying explanation, let alone any empathetic acknowledgement of how much it has hurt me.

I think it is hard to gauge if she really did not know what you were talking about or just wanted to let bygones be bygones.

It is not logical (for me at least) that a best friend would not contact you for over a decade, and have no recollection of how it happened. Life happens, I understand… but this?

May I dig a little deeper? How much do you need this friendship? Would it be OK for you to let her back in without any explanation? Or Would it be OK for you to give yourself closure and let this relationship go? What do you want to see happen in this friendship?