There is not the slightest hint that cheating on one's wife constitutes any kind of wrongdoing. Not at all. Men of Old Testament times were allowed to have as many wives as they wanted. King Solomon, whom the Bible describes as the wisest man of all time, had 700 wives and 300 concubines. Nor did marrying multiple wives cause an economic hardship.
Wives produce babies.
And, in a culture where most people earned their living by herding and farming, children were a financial asset-unpaid laborers for their father. Perhaps he should have followed the example set by some of our previous presidents and set them up as mistresses. Or maybe he could exculpate himself by paying their fathers a really big sum of money. Christians will maintain that I am basing my arguments on the Old Testament and that standards changed with the coming of Jesus. He did not say that it is wrong for a man to have multiple wives, to cheat on his wife, or to abandon his wife.