wait, do you hate everyone?...
No, we just don't show it. It's painful to show any emotion. And we'd be surprised if anyone asked us if we were "depressed" or "not having a good time", because we're still probably having a ball. But building on that, we are often oblivious to how we act towards people, and what others' think of us. If people don't like us, we don't understand it. Or most often recognize it. And worse yet, know how to fix it.
We can often act one way one time, then completely different another day, and honestly and truthfully have NO FUCKIN' CLUE THAT WE COME OFF ANY DIFFERENTLY THAN BEFORE. I have literally had people ask me, "What happen to the funny guy I knew yesterday?" And it's only at that point when I realize something wrong. Or even different.
We're oblivious.