How did Aeneas betray the Queen of Carthage?

Aeneas betrayed Queen Dido of Carthage by abandoning her after they had developed a deep romantic bond. Despite her love and the life they built together, Aeneas was compelled by fate to leave Carthage to fulfill his destiny of founding Rome. His departure devastated Dido, leading her to despair and ultimately to her tragic suicide. This act of leaving, driven by duty rather than love, is seen as a profound betrayal.