This was very bittersweet; he thought they were all crying because he had done something wrong, it didn't cross his mind that he would ever make someone cry tears of happiness." --Yeah, I didn't need my heart in one piece.
Sherlock’s face when he realizes he’s hurt John. (gif) Too many feels! And important to remember that he's only known John for about a day at this point. You can see where Sherlock just wants to take John's face and kiss him