Now You're Just Somebody That I Used To Know, Seen By John Watson

Slightly angsty one-shot based off the song Somebody That I Used To Know, by Goyte. John wrote a note and left it on Sherlock's grave, inspired by a song he heard on the radio once. This is what it said, including Sherlock's response. (Which yes, he did write on the bottom of the paper.) In between TRF and TEH, spoilers for season 2 ending (duh.)