Thanks to Consulting Angel for beta reading!
There is a woman for whom Sherlock Holmes is not indifferent.
He sees her quite often. She follows him while investigating cases, and a few times they had something like a date. He always notices her presence - he sees the familiar silhouette or smells her perfume, such an unusual one which you wouldn't mix up with something else. And when he does, when he knows she's there, it means that the case will be solved brilliantly. He chases her just to see her shadow, and she lets him catch her up before she turns back and smiles. Her smile is worth all his efforts, there is no better reward for him.
She isn't one whose attention you should attract, but you must deserve it. He had luck: she had chosen him before he even could think about it. She had luck, too: he didn't keep her waiting for long. They both chose each other, isn't that happiness?
He always does his best to deserve her attention. She laughs softly and strokes his hair lightly, saying that's too much. He smiles back, nods in accord and goes on.
Sometimes he sees her in his dreams. She would say the same with pleasure, but she doesn't dream. So, they meet only in reality. Seeing each other so rarely wouldn't be enough for most people, but what do most people understand at all? They are only a background for him or her, or sometimes a stuff for cases. In other time they are just annoying. When his passion becomes visible, people around him sniff and call him a freak, but, in his opinion, they can burst with envy because her smile is still the only important thing in this world.
He has loved her for very long, and somebody clever would understand clearly: this is forever. Her tastes are permanent, too. There hasn't ever been a shadow of jealousy between them; their thoughts, words and doings are the same. She has pale skin, long hair and unusual smile, and her way of dressing is very simple. He likes her simplicity and omnipresence, she likes his intelligence and elegancy, and they both like this passion.
There is the only woman Sherlock Holmes will always find time for, and her name is Death.