Sometimes we have severe challenges in friendship. It is best to just be graceful and kind about such matters and if others are not kind enough to explain just remember what you do not want to become and recognize what you are leaving behind.
while seeing amma she made the comment that those who give others the silent treatment and stick their nose up in the air actually have a form of mental illness. Sometimes we wonder about ourselves when this treatment is given to us however we should realize that people do practice meanness and this kind of behavior is a result of being so wrapped up in ourselves and our ego that there is only one view; our own.
Jitendra