Obadiah's gaze lingers for a moment at Sherlock's neck while he answers.

"He asked whether the other Tony loved me, and I said he did, which he seemed to approve of."

He looks thoughtful, eyes moving back up to meet Sherlock's.

"Which wasn't really the reaction I was expecting. I was waiting for something more along the lines of accusing me of taking advantage of Tony's affections. The two of you are different in some ways, of course, but I didn't think you'd be that different."