Have you ever sat around in Phoenix Arizona with two people, one male and the other female, and discussed the temperature in the house? Does it often end up where the woman says she's always cold and the man is always hot? It probably doesn't have anything to do with their Glendale air conditioning unit if both people live in the same house.
It usually has to do with the temperature set in the house.
Now, if your air conditioning unit is always acting up and keeping inconsistent temperatures, first call an APS qualified contractor and then worry about who is cold and who is hot.
If it goes out completely, then both will be hot and probably not in the mood to discuss the differences.
It would be interesting to conduct this survey in a state where they don't have artificial cold, say Montana.
One difference the couple might have is that one may work in a relatively hot office or even outside, therefore when they get into air conditioning, the difference between what they are accustomed to and the air conditioned room might be quite dramatic.
If you work outside in one hundred and ten degrees and walk into a room that is seventy-two degrees, the difference is thirty eight degrees.
That's enough to make even a Phoenix AC repair person chilled.
If you just moved to the Valley, that is also why you see people wearing sweaters in the summer indoors.
The drastic difference between outside and inside is worst in the summer months than in the winter months because it is more of a burden to put on clothes to keep warm in the summer than it is to take off clothes upon entering a house in the winter to get warm.