People are emotional beings, therefore we tend to attach ourselves to other human beings or objects that we come constantly in touch with. Emotions grow with time, thus emotions also fade with time. Sometimes, we put the wrong feelings on people due to a moment of impulse. Sometimes, we waste feelings and thoughts on the wrong people due to circumstances. After a long time (years not months or weeks or days), if it still feels the same I guess everything has crossed over to the safe side. But the only constant in life is change (can be a sad or happy fact), we can never be rigid and expect all else stays the way it does just because you feel that you have not changed much. The actual fact is that you may have changed, just that you are not conscious of it.

A lot of times, I just hope that I can be a robot devoid of all emotions. Learning to let go, that is an important lesson in life. :) 只有放手，才能得到更多。