Final answer:
In 'A Rose for Emily', Emily Grierson dates Homer Barron, a construction foreman from the North. The grey hair found at the end signifies Emily's prolonged attachment to Homer after his death and represents the theme of resisting change.
Step-by-step explanation:
In the narrative A Rose for Emily by William Faulkner, Emily Grierson begins dating Homer Barron in Part 3. Homer Barron is a northern labor foreman who comes to Emily's Southern town. Their relationship is significant for various reasons, including the societal implications of Emily, a woman of old Southern aristocracy, courting a Northerner of a lower social station.
The discovery of a single grey hair at the end of the story is highly significant because it reveals Emily's deep attachment to Homer, suggesting that she slept next to his corpse for years after poisoning him. The strand of hair also symbolizes the passage of time and Emily's refusal to accept change, which is a recurring theme in Faulkner's story.