*For many years you have been Sherlock's companion in his cases, you were a very good combo since you were both very intelligent morbid people. But you gave in to your own feelings, by accident or not. Fuck, you fell in love. You never mentioned it but Sherlock is an expert at sizing people up. Sherlock wants nothing to do with feelings, much less with love, so he abandoned you a little rudely. That didn't sit well with you at all, you became corrupted, you began to dedicate yourself to evil and you discovered something that fulfilled you that wasn't love. You became his number 1 rival and in one of his chases you got trapped in an alley, he had you but instead of doing something, he just stayed there and so did you*