Why is miss fairfax referred to as the honourable gwendolen fairfax?

Miss Fairfax is referred to as "the Honourable Gwendolen Fairfax" because she is a member of the British gentry, which is a social class recognized for its nobility and status. The title "Honourable" is traditionally used for the younger sons and daughters of barons, viscounts, and earls, indicating her family's social standing. This designation emphasizes her status and the expectations placed upon her in society, particularly concerning marriage and social propriety. In Oscar Wilde's play "The Importance of Being Earnest," this title also serves to highlight the play's themes of social class and identity.