To the bravest man I've ever known,
How are you doing? Well I hope. I'm not doing so well. I don't do much anymore. I barely sleep. Rarely eat. Don't work. Barely move. I smoke like a chimney, drink like a sailor.
Mycroft tells me you're slowly moving on. He says you're dating again. I'm glad. Smile. Laugh. Just be happy. Please, could you do that? Get married someday. Start a family. Live the life that you want.
Also, just so you know, I'd die one million times without a second thought, if it ment you'd survive. Because honestly all I have in my life is you and the work. But... I gave up my work for you.
Being 'dead' has changed me, John. I have more emotions. Fear. Sadness. Love. I was jealous of one of your girlfriends. Didn't leave my room for weeks. Then, one day it hit me. Just like that. Out of the blue. I realized...
I love you.
-Sherlock Holmes