So...when Claire told Emmy she was seeing someone, I don't think they had this sort of arrangement in mind. Hiring your prostitute ex-girlfriend to help you get over your more recent ex is probably not the most rational decision, Claire.
That said, I think Shallon is done with the charade, and rightfully so. Maybe she thought there'd be something there. Maybe she thought the money would be nice.
Claire's going to have to face reality rather than power through with all these super unhealthy coping mechanisms eventually, right?