My William,
Why am I not surprised that you have researched certain aspects of relationships? It amuses me in the best way. Of course I would be delighted to move in with you. Truly. It is obvious you have given this much thought but I wonder if you are absolutely sure that this is what you want. I am quite happy that you noticed all of that in 221B; even I didn't realize how much I was imposing. I do want to stay with you always. I want to come home to your arms and kiss you hello. I want to hear your beautiful melodies played upon your violin on your late nights.
Do not worry about those awful tabloid journalists. I'm handling it better than I was. At least I am no longer being ambushed at my place of work or being followed home. I suppose I have Mycroft to thank for that. Though I often wonder how you handled it when they would gather outside of your own flat. It can be tiring.
You never miss a chance to make me blush. I love how you love me. I've never seen a heart more beautiful than yours or a love as pure as ours. You have come so far, my love, and for that, I admire you. Even with fear, you trusted me enough to catch your second fall in an emotional capacity. You've been so breathtakingly fearless, as it is not the absence of fear but having the strength to do what scares you most. Your bravery is something to behold.
Mycroft visited me yesterday at my flat. He apologized for his purposeful interception of that letter from a couple of months ago. And because of the fact he may never actually admit this to you, I'm telling you here. He mentioned how very proud of you he was; with your growth and choice of, as he put it, 'romantic partner' (that's me, hello). I just thought you should know.
You surprised me tonight at the St. Bart's Halloween party. I never took you for the costume type, though I don't know why; you seem to enjoy disguises whilst on a case. You made for a handsome vampire, I must say. I had to explain my costume to you; Emily from Tim Burton's Corpse Bride. You seemed to like it. A lot. I'll have to show the film to you sometime. I hadn't realized how hurt you would be that I didn't invite you to come with me. I never thought you would like to partake in such an event, as you never took interest before. I'm sorry, Sherlock. I know you told me there was no need to apologize but I felt the need to. I'm happy you showed up.
It seems we still have some communication issues to work on, but that's okay. We'll get through it. I want to make it up to you somehow. We had fun though; dancing as you deduced others quietly. I didn't expect you to suggest going through the Scare for Care haunted house though it was nice you wanted to donate to the cause. You didn't jump at anything once but laughed when I did, guiding me with your hand on my lower back.
Thank you for taking me home; you didn't have to. I hear your voice in my head: 'What kind of date would I be if I allowed you to go alone?' You once thought you wouldn't be cut out for this; a romantic entanglement, as you so put it. That night after the phone call you even said you'd make a rubbish boyfriend. Sherlock, you're honestly the best I've ever had. And I plan for you to be my last. We're both in this for the long run. We want to build a life together. And that's exactly what we'll do. Don't worry about details right now; just live in the moment with me. I love you, my sweet William. You are everything I've ever wanted and more.
With all of my love (seriously, all of it),
Your Molly xxx