Truth. It's hard, but it makes people respect you.
My director for a play once stood in front of the entire cast and apologized for saying something angrily at two or three cast members. She's a wonderful, sweet lady, and I know it takes a lot to get her riled up, so it must have been something pretty serious to make her mad. But even though it was against just a couple people and most of the cast didn't even know the exchange had happened, she apologized in front of everyone. And I gained so much respect for her from that.
It's super hard to say "I'm sorry." But it's really good to.
I'm sorry. Hope you feel better.