Friends are expected to be loyal (xiaojing wu)

"It is easier to forgive an enemy than to forgive a friend"
by William Blake

A friend is who much more close to you than an enemy. Friends are the people who you trust but enemies not. Friend are the people who you think that know you well, but enemies not. Friends are the people who you think are unique and important to you. Enemies are the people that you conflict with, you never expect they will be good to you, but friends not. A friend does some bad things on you that will be different to believe, because you never think of it, and then it is difficult to forgive. That is really unbelievable.Friends are expect to be loyal.