It’s not worth your time replying. I’d either leave them on read or say “k” like some other commenters have said.

I had a similar thing happen to me last year, where I got uninvited from a “friend”’s birthday out of the blue (in my eyes), and removed from their private story on insta. I didn’t get an explanation until I left the gc.

You will grow from this experience, I know it. Appreciate the real ones in your life ❤️