Naaah--hunting is the oldest profession. How was the prostitute paid, anyway?
Lets see now what is the difference between a mistress, a prostitute, a Slut and a Gold Digger ???
Some how the old saying about men comes to mind. A man can marry a woman as she is the best Italian cook in town, somewhere after 7 years of eating her food he may decide to sample Chinese or Irish cooking.
Variety my Grand mother told me keeps a man happy, when a man is happy so will be the wife and family. Keep him on his toes so he wants to come home after work to find something interesting going on. Most important is if after a few years he suddenly becomes jealous of other males------Look out, he is up to no good.
Old fashioned advice yes but way back then divorce was very uncommon. Also the fact that the woman keep the books the men had no way to have money to spend on another woman.