For memories so that they could remember everything about the wedding
A foil in literature describes a character who contrasts with another character in order to make comparisons and highlight certain traits between these two persons.
Both Melantho and Eurycleia are servants of Odysseus. While Melantho is unloyal, (sleeping with the suitors while Odysseus is away) and treating him rudely when he returns disguised as a beggar, Eurycleia remains devoted and kind. Melantho is used as a foil for Eurycleia to showcase her good traits.
The first vehicle to stop
Dramatic irony is your answer. there are three types, situational, dramatic, adn verbal.
