Why?!

I find that people are getting more and more sly now.. Once a friend, now.. I don't know.. After your promotion, you become a dangerous person to me. I don't dare to tell you anything of what I thought of. I am afraid that you will betray me one day.. And the way you act is totally different from last time. TOTALLY DIFFERENT! Must bware of I said..

Today, I did something wrong. I really have no idea what I really said that caused him to say something so serious. How?! Should I apologise for something which I don't rmb? Or should i not? OMG.. WHAT if he is really NOT going to talk to me again? HOW??? OMT..