Elio’s last words reiterate the fact that part of his romantic relationship with Oliver involves a recognition of himself in his lover. If Oliver were to call Elio by his own name, Elio thinks, this would confirm that he does indeed “remember everything,” since this was seemingly the most important moment of their romantic partnership. When they traded names while making love, they forged an intense connection, one in which they not only shared parts of themselves with each other, but actually
became each other. In turn, this is why it is so difficult to see Oliver leave, even after all these years—in saying goodbye to his lover, Elio must also say goodbye to part of himself.