That was his life two years before Gaston began to wait for the airplane
In the events pertaining to Aureliano, Amaranta Ursula, and Gaston, we see the plural nature of the novel again. At first, this seems to be showing some modern elements, with the relationship of Amaranta Ursula from this village with a more modern man from Europe.
When she goes back to tradition and visit their village, it seems completely reasonable, and the expected ending of a modern short story showing this would involve her learning and leaving tradition behind. However, we see her fall back into it, starting an affair with Aureliano from the village, and staying there, where she will die.
So we see both modern and old-fashioned clash in an interesting way with this small sub-branch of a story.