Well not "worst enemy" but I hated her. She had no mind of her own and got into drugs and alcohol.. and "stuff" So we aren't friends anymore.. sometimes I miss the old her, but i'll never see her again so I'm okay basically.
Well, I know a guy who basically disagrees with me on everything... There have been a couple of times where I agreed with him in a conversation, and i'm like "wait what's happening".