Three short stanzas, each one ending on a word that begins the next, so the poem keeps turning back on itself. It starts with "discrete," meaning separate, and describes two innocent souls. Then the innocent ones become "fading lovers," and finally the lovers become "two teens, just discrete." We end where we began: apart.
The speaker sounds quiet and a little wistful. There's no anger here, only a gentle acceptance that two people who seemed close were never fully joined. The shifting labels, souls, lovers, teens, suggest a relationship seen from different angles, perhaps tender, perhaps naive. Calling the lovers "fading" hints at loss, while "just discrete" makes their separateness sound simple and unavoidable.
The mood is soft, hushed, and slightly sad. The looping structure makes it feel like a thought the speaker can't stop revisiting, as if love keeps dissolving back into distance.