What is the fine-grained topic of the following text: He then proceeds to compare himself to Aegisthus of Greek legend, the lover of Clytemnestra while Agamemnon was away at war, writing: "What forced the Fool to love / his beastly idle life / Was cause that he besotted was / of Agamemnon’s Wife." Only return the topic.
Comparison to Aegisthus from Greek legend in literary writing