How does the author use foreshadowing in The Country Husband?

Throughout "The Country Husband" the narrator uses similes to describe Francis's inner and outer experiences. When Donald, a neighbor, begins his usual playing of "Moonlight Sonata," the narrator says it is like an outpouring of tearful petulance, lonesomeness, and self-pity—of everything it was Beethoven's greatness not to know. The music rang up and down the streets like an appeal for love, for tenderness, aimed at some lovely housemaid—some freshfaced, homesick girl from Galway, looking at old snapshots in her third-room floor. Cheever uses these similes in at least three ways. Besides bringing the moment to life for the reader, he projects Francis' s feelings of longing into the music and provides foreshadowing in the image of the young servant girl. His idealized image of this Irish servant contrasts with his recognition of the maid whom he remembers as having been humiliated during the war.