Final answer:
The passage uses the 'sacrificing spouse' archetype, mirroring 'The Gift of the Magi' and highlighting themes of love, sacrifice, and irony.
Step-by-step explanation:
The author in the passage uses the archetype of the sacrificing spouse, which is a classic element in literature where one character makes a significant sacrifice for the love and well-being of another. This situation mirrors the story of 'The Gift of the Magi' by O. Henry, where both protagonists sell their most treasured possessions to buy a gift for the other, leading to an ironic and bittersweet outcome. The characters, Curtis and Erica, display their love and selflessness through their actions, creating a depth to their characters that aligns with an archetypal narrative of self-sacrifice and irony in relationships, emphasizing themes of love, value, and irony.