I have a friend in my college. We live in the same town. I always thought him as my best buddy and shared everything with him , few weeks ago a junior from my college told me that my friend talked rubbish about me. I didn't believe him at that time and few days ago another one of my close friend also told the same thing , so now I'm pretty sure that he is talking bad about me to others behind my back. Now should I need to cut him off completely.