Starfire's age varies depending on different storylines and comic arcs. But generally, she's often depicted as being in her late teens or early twenties.
Sure, they met. Their meeting was a key moment that led to many developments in the comic series. It set the stage for their relationship and adventures together.
No, they're not exactly the same. DC Comics is the original source of the characters and stories, while the DC Universe is a broader platform that includes various media adaptations and related content.