The Pain of Falling Out of Friendship

People fall into friendships but they also fall out of them. Either I have changed or my friend has changed, is the way we put it. So a friendship generally speaking falls apart when the friends have gradually began to take different directions in their lives and are no longer connected in the way they had been up to that point. It's very painful sometimes to fall out of friendship no less painful than falling out of love with someone which is often worse.