The best way to summarize the theme being discussed is "The character of Penelope is very loyal".
Although Penelope is pursued by 108 suitors during Odysseus's absence, she never gets involved nor starts a relationship with another man. She waits twenty years for her husband to return and she devises different tricks, such as the shroud she is weaving for her father-in-law, to delay marrying one of the men that try to chase her. Therefore, Penelope appears as the symbol of faithfulness in Odyssey.