Final answer:
The dialogue concerns ancient societal views on sexuality, suggested by the unconventional relationship between Leaena and a woman named Megilla.
Step-by-step explanation:
The dialogue between Clonarium and Leaena touches on a theme of sexuality and social norms in ancient history. The content implies a relationship that deviates from the traditional gender and sexual roles of the time, as referenced by Clonarium's shock and Leaena's shame. This might fit into a broader discussion on the social and cultural attitudes toward sexuality in ancient civilizations, specifically in this case, the Greek society.