I believe Binny's aversion to housekeeping was one symptom of her depression, resulting from repressing her own emotions, which becomes clear as the story unfolds. Her parents had died not so long ago, but she refused to cry or show her emotions at that time, then Oliver, her current "partner," ups and leaves her, confessing his affair with another woman who is now pregnant. Although Binny is beside herself, true to form, she is still willing herself to remain stoic, refusing to deal with the emotional turmoil.
Rather than dealing with her emotions by expressing them verbally, instead she chooses to throw plates, covering her kitchen floor with the "thousand blue ceramic pins" that were formed, then she "swept the splinters of china into her hands and squeezed until she felt them spike the skin." (This process reminded me a bit of "cutting" behaviors that some people do to "relieve" themselves of emotional overload/misery.)
It was amazing to see how Binny reacted to the cleaning shop worker...and finally obtained some relief. Proof that none of us ever knows when we might have significant impact upon someone else's life in the seemingly most insignificant interactions.
I highly recommend this story. Have you read it? Or have you read anything else she has written? What was your reaction?