My Molly,
I must get one thing cleared up for you: I could never be bored of you. I never have been nor will I ever be. You are, by far, the most interesting person I know. This is one of the many reasons I have fallen so completely in love with you.
I gave my family your regards, which they accepted gratefully. I would love to accept your offer of dinner, though you may need to postpone it as my parents are insisting on having you over this weekend. It seems I cannot keep your name from my lips, as I think about you constantly. Mummy is quite overeager to meet the woman whom I am, in her words, smitten with. How is that for domestic? I hope you will accept, as I won't hear the end of it if she doesn't get to meet you soon.
Thank you for taking my violin to be fixed. You did not have to do such a thing, but I truly am grateful for your considerate gesture. I haven't been back to Baker Street too much as of late what with the family issues I've been dealing with. I think we are making some progress. I've been to visit Eurus, and though she refuses to speak, she communicates through her violin. When my own is ready to be played again, I shall see if I can communicate with her that way.
I have been working on something I've wanted to tell you for years, so I hope this comes across well. Though I was not aware of the immediate connection we had, it was upon our first meeting eight years ago that I knew I would have to reorganize my mind palace to accommodate a room for you. Hopefully, that makes sense to you. All you really need to know is that you've had an entire room in my mind palace dedicated to only you since we've met. I believe that's the better wording. I do hope you are well, sweetheart. I miss you.
Always yours,
Sherlock xx
P.S. It wasn't cheesy…I really like that quote. And to quote one of your favourite artists, 'all that you are is all that I'll ever need.'