So one day somebody unfriends you. You have no idea why. Or when. You just realise it must have happened. Like when a stray cat pisses on your doorstep.
The unfrienders don’t scream and shout (as people may do in real life when they wish to be unfriendly) and they don’t throw your love letters in your dumb face. They don’t call you names, they don’t slam the door, the neighbours don’t feel they should call the police.
Unfriending is silent. Break a plate and you’ll hear it break. Friendship hits the floor without so much as a half arsed whimper.