I think I read this short story (within the past five years) which was a science fiction (possibly post-apocalyptic) short story anthology.
There was some kind of event which caused the world to become untethered to chronology so that everyone lived their lives in a non-linear fashion. The main character experiences days when he is with his wife and happy and then days where she's left him for someone else. At the end it's the day before he dies but he talks to his friend knowing he'll see him again (I think at some place which serves bad coffee).