[What John says hits him hard. He flinched, unwanted thoughts of him harming Sherlock filtering through his mind. If he'd been on the other side, maybe he would not have been so fixated on it, if he knew he had no part in wanting to hurt anybody. Objectively he knew that if, in fact, they weren't now under the brainwashing, there was no danger. But he couldn't let it go--he couldn't relax, couldn't quite believe this had actually ended. Perhaps he even this wasn't real, and John was just a visage, or under their control too.]

how do I know they dont have you as well dr Watson? how do i know you arent compromised either?????