Though Holmes is desperate over the sight of Watson in pain and bleeding frustrates him, makes him eager and anxious for an immediate cure, he's glad that Mrs. Hudson needn't be involved; he doesn't have to worry about schooling his expression or keeping the love out of his eyes, and he can kiss and hold Watson all he wants.

He helps Watson up the stairs, clinging onto him, probably too tightly, and he pushes open their sitting room door. He ushers Watson through it and kicks it shut behind him -- and he locks it, for good measure.

"Sit, darling," he murmurs and directs Watson to a chair. "I'll fetch your bag. And some water?"