Holmes: (sees Drummond) Oh, speaking of vermin.
Watson: What is it with you and that woman? It's obviously more than just hating profilers.
Holmes: If you're asking if we had sex, the answer is yes, obviously.
Watson: Oh, so she's an ex?
Holmes: More like a C, C-plus at best. We had an arrangement while she was in London, similar to the arrangement I have with other women here in New York. We performed the act of love loudly and repeatedly, without any actual love, or even any like. I would describe it as an act of self-love were it not for the fact that she was technically present.
Watson: I get it.