In "The Odyssey," the character of Amphimedon highlights the values of loyalty in Greek society, particularly through how the suitors treat Penelope. While the suitors are disrespectful and disloyal, vying for Penelope's hand despite her mourning for Odysseus, this contrast showcases the importance of fidelity and loyalty in relationships and social conduct. Thus, the correct answer is:
the suitors treat Penelope.