Friendship is broken, friends are gone, and a person's world is left with him. I want to write a sad story. How should I write it?

When friendship has been shattered, there is only one sad place left. Time is still ticking its rhythm, but it has changed the old feelings of two people. I have never regretted it, because at least I got the friendship I expected. I have never been haggard, just because we cherish each other's friendship. Time goes on, and the sun and the moon are still alternating. Are you still in your usual place? Silent memories.