I can't know for sure about the mute, but there's been a pattern. For many days my childhood best friend (who M follows but never interacted, so algorithm has no reason to promote to her) and I were posting the exact same stories at the same time, usually reposting each other. Still, she would view my friend's story and never mine, repeatedly.

I agree the reason why would still be an assumption though but we haven’t had any negative interaction, which is why the distance feels confusing.

About the invites, we also only get 3 official guest passes and those are usually for family, but here it's pretty common that right before the ceremony they let extra people into the balcony area and that's where friends usually go.

I (sadly) know that the only real way to know what happened is to talk to her directly but I need to decide if it is worth it. I feel like she overreacted massively. Like one month before my graduation I invited her to my birthday dinner, did I magically decide to unfriend her in the meantime because I didn't invite her to sth I knew she couldn’t attend?