Sherlock took the news like John thought he would take it- laying down. He didn't seem to care that there was someone stalking him. Trying to, at least. He didn't seem to care about anything except the case at hand and the nicotine on arm.
He seemed more worked up when John had said 'friend' instead of, perhaps, potential kidnapper/murderer/stalker combo. In the end, he settled with the man's word, 'archenemy', and Sherlock seemed perfectly okay with that.
Yeah. Sherlock was weird. But at least he wasn't boring.
And we all know that Sherlock is thinking the exact same thing. Back to Sherlock's POV for next chapter! Reviews are, as usual, good, :D