In the book "Percy Jackson's Greek Gods" by Rick Riordan, the theme of happiness and the complex nature of myths are humorously explored. The quote, "Did they live happily ever after? HAHAHAHAHA. No," reflects a cynical view of traditional fairy tale endings, indicating that the lives of Greek gods are filled with struggles and chaos rather than blissful endings.

This reveals a deeper understanding of the characters and stories within Greek mythology, as many figures face tragic fates and unresolved conflicts. Riordan’s retelling conveys that the tales of these gods lack the simplistic resolutions often found in modern storytelling, emphasizing the complexities of their relationships and adventures.