She was safe, constant, predictable, caring, understanding, careful with his emotions, gentle and…boring.
He, on the other hand, was fantastic, erratic, fast, dangerous, rudely frank, brash, daring, steeled, paradoxical, unabashed, guiltless, shameless, ignorant, unpredictable, unstable, regardless, theatrical, rubbish with feelings, a complete pissing tosser and…interesting.
There really was no mystery as to why John Watson was drawn to Sherlock and not Sarah any longer. With Sarah, his hand shook, his leg ached, and his mind went into this mushy place of nothing.
With Sherlock, he held the gun steady and his mind raced trying to keep up with the man. It was utterly fantastic the feelings Sherlock could provoke in John with just a glance and a quick deduction.