A sense of Betrayal...

I have been betrayed. I have not really make the situation clear but with what little information i know, i felt it, the dreaded sense of being betrayed by someone close. I know that I should never jump to conclusions, there must be a reason why he does this. However, I just can't help feeling a gushing sense of anger trying to erupt. What should I do? Scold him? Ask him? Or forget the whole thing and never trust him anymore? I felt so angry, because I trusted him so much.
I kept his secret like a mystery never to be known to others, I was tempted to tell, to gossip, but I didn't. When he shared it with me, I was really so happy, because I favor the thought that he treat me as a true friend and trusted me. Therefore, I trusted him and told him one of my secret just to be fair. I made him promise never to tell anyone. He said yes. I should have known better. He was a blab. A gossip. Whenever there are hot gossips, he would sure to be the one to know.
How did I know he cannot keep his promise? Well, my friend, just a little information for you, the world is a very small place, and one after another person, the gossip would soon be back in my own ears. Though it is not really a VERY big secret, but I learnt my lesson.Never trust anyone with secrets that you do not want others to know.
I have never trusted anyone with my deepest secret before, because I am afraid. Deep down, I am really afraid. And this is exactly what I am afraid of. Did he ever treat me as a true friend? OR am I just another source of gossip for him? Taking notes of my every word and telling everybody about it...Do you ever think about me when you blab? My hurt feelings when I know? I really misread you my friend, guess I could only blame myself for trusting you, but let me tell you something, the moment you open your mouth and spill out my secret, you can kiss my trust GOODBYE.