I greatly appreciated DM’s fine remark that you have to be in a relationship to understand that locations can become “haunted” (my word) with decisive emotional events that have taken place there. The writer is talking about the couple’s home. And aren’t there places in your own home, in my case one is the end of a cabinet in the dining room, where you will never forget what was said there? The atmosphere lingers, like a faint smoke or an odd feint of light.