Backstabber people

I had this friend that I trust and i told her everything about my secret.We used to be so close that I acted comfortable with her.Then one day a friend of her told me that she knows everything about my secret. I was very shock, hurt and brake my heart into pieces until today. I cannot believe she did this to me.She is very religious, kind and generous. I do not know what to do im just hurt. Help me.