Antagonizing others

On that day that I almost told my teacher a secret that wasn't mine to tell, I think I antagonized someone whom I should love and probably do love very much. I feel very guilty about it now, but I don't want to bring it up with the teacher and blabber about how great this person is because then I might come close to telling the secret again, which would antagonize him even further. I wonder if I'd have acted differently if I were braver.