So far every season of Sherlock has ended with a big messy display of how much John Watson is Sherlock Holmes's heart.
The show started small with him giving up on winning a case for John and freaking out about John being in danger. Then it hella escalated to Sherlock KILLING HIMSELF to protect John. Then he straight up shot a man in the head in cold blood to protect John. What's he gonna do to prove it in season 4? Overthrow the government? Start a war? Blow up the earth???













