"I never get that, but then, people will believe what they want." This is not as dismissive as it might be in someone else - she's seen it, after all. People will do anything to rationalize what they want to be true, and ignoring worsening symptoms to focus on one thing that might improve? Not the worst way Rosita has seen people lie to themselves.

"So you two really cleaned house?" she prompts, saving how two native Londoners can arrive there for if the answers don't come on their own.