ugh i’ve been in your situation before and its so frustrating not being able to confide in them or ask them why they are doing this and getting a flat angry reaction with no real explanation. :C It sucks how communication and mutual understanding nowadays doesn’t work with some people. And sometimes those “people” are your friends until you discover they aren’t.
Ghosting you on purpose and not talking to you is a really immature move on them. It’s not your loss, it’s theirs. I’m sure you did nothing wrong. They sound like the easily sensible and unreasonable dramatic types. I used to have a group of very close friends in high school that did exactly what you described and they hated me and I still to this very day, 5 years later still have no idea why they did so.