Why Juno despise Aeneas?

Juno despises Aeneas primarily because he is a Trojan and represents the destiny that will lead to the downfall of Carthage, her favored city. Additionally, she harbors resentment towards the Trojans due to the judgment of Paris, who chose Venus over her as the fairest goddess. This animosity is further fueled by the prophecy that the Trojans will eventually defeat her beloved Carthage, motivating her to thwart Aeneas's journey to fulfill his destiny.