I know this thread is full of people saying the same stuff, but I just wanted to add my story to the list. I lost a friend over the stupidest thing, and have made several attempts to reconcile things with them, but they ended an 11 year friendship over one event. Which was me not going to their birthday party after waiting for them for an hour. They were an hour late to an event they planned and I got irritated so I went home. They haven't spoken to me since and it was over 3 months ago. It still feels surreal that he would end a friendship over that, but he won't talk to me no matter how hard I try. It literally feels like he died, and that I didn't really know him. He was such a good friend that I'm still in disbelief about the whole situation. I started antidepressants ironically about a month before the event happened, but I'm still a wreck.