Thank you for reading.
I like this one too. Maybe, it'll be expanded.
For the three years Sherlock was "away," he wrote one letter per day to John. When the last piece of Moriarty's puzzle was eliminated, he left the letters where John could find them, not being able to face him.
After all Sherlock did to keep John safe, he lacked the courage to face him. Sherlock couldn't bear the thought that John might never want to see him again.
Sherlock wandered London until he came upon the cemetery with his empty grave. John stood holding a box.
"I wrote these to you everyday," John said thrusting the box at Sherlock. "Welcome home."
Thank you for reading.