Breaking a Promise and Almost Friendship

The one time that I broke a serious promise was a while ago. So it is Austin, Anthony, and me are all really good and close friends. One day when I was hanging out with Austin and he told me something bad that I did not know about Anthony. Austin made me promise that I would not tell Anthony what he told me. A week past and I still had not told Anthony what Austin told me. Anthony called me and he wanted to hangout during the weekend. I went over his house and I being a good friend told him what Austin had said about him. Anthony was mad, but he thanked me for telling him. Austin was having a big Halloween party at his house with everyone friend school there. Anthony decided to confront him about the situation. My two friends were arguing at each other so decided to step in. I calmed them both down and they said sorry to one another. After the problem was solved, we went back to the party and had a great time that night! All three of us are still friends to this day and will always be friends!