Which are reasons Aeneas decided to leave Carthage?

What cause the punic war?

By about 270 BC, Rome and Carthage had become two powerful cities that each sought to expand their territory throughout the Mediterranean. Rome, with her powerful armies, took control of Italy and began expanding into what is now southern France and northern Spain. Carthage, with her powerful navies, took control of southern Spain and islands like Sardinia and the Balearic islands. It was virtually inevitable that the two powers would wind up fighting.The First Punic War started as Rome and Carthage began taking control of the island of Sicily. A mercenary army took control of part of Sicily, and then got into a fight with Syracuse, which was a powerful city in its own right. Afraid of being attacked by Syracuse, the mercenaries begged both Rome and Carthage for help (Rome and Carthage had previously been allies in a recent war against a Greek king named Pyrrhus). Carthage sent help first but when Carthage started taking over their town, the mercenaries begged Rome to help- which Rome reluctantly agreed to do, and they sent an army to assist. The war had begun.The Second Punic War started a little over 20 years after the end of the first one. Rome had won the first war, and imposed a harsh peace upon Carthage. Part of the settlement divided Spain between Rome and Carthage; a small river marked the border between their territories. Fearing Carthage's growing power in Spain, Rome allied with a city-state on Carthage's side of the river. Carthage's legendary general Hannibal attacked and conquered the city, which started the war; he then famously marched his army- including elephants- over the Alps and into Italy.The Third Punic War started about fifty years after the end of the second war. In the treaty ending the second war, Carthage agreed to pay a lot of money to Rome every year for the next fifty years; also, if Carthage needed to go to war, they were required to ask for Rome's permission first. After the fifty years of payments ended, Carthage believed that they no longer needed to request Rome's permission to go to war anymore. When Carthage subsequently got stuck in a war with one of their neighbors, Rome declared that Carthage had broken the treaty. Rome, knowing they would easily defeat Carthage this time, kept making unreasonable demands to ensure that negotiations to prevent a war would fail; when the negotiations did fail, Rome declared war and sent a massive army to attack Carthage.