You must also take into consideration the MPA's mode. The modes of women and men change. It is not the same all the time. I had several different experiences with the same MPA ( my fav) in span a month. One time when she opened the door and saw me got visibly excited, happy, hugged and kissed me like i was her husband and returned from a long trip providing heavenly experience ( I am in GFE only, not PSE or CIM, etc.). The other week, i got impression from the same very MPA as like: do I know you?! Then after a couple of weeks she became sweetheart again.
It is nothing to do with SPA business or sex trade. It is human nature. It is the same in married life as well. You have experienced yourself or heard in TV or movies that wife tells her husband who tries to initiate sex: " I am not in mode". Gentle reminder: MPAs are human not robot to act the same all the time. Also, when we are horny we visit SPAs. So we are in mode all the time because we need sex or spa service. However, those services are MPA's work.