Elodie can become engaged to the also-recently-orphaned Adair, Duke of Elath. With enough skill in Animal Handling, they proceed to bond over frog-catching. If she instead leaves him in the custody of Arisse or Adele, he sends her a badly-written but heartfelt thank-you letter for letting him stay with his stepfamily (as opposed to the too-perfect dictated one she gets if she sends him to his grandfather). And she also gets a nice letter if she sends him to her uncle Armand, since there are a lot of frogs in Mazomba.
Early in the game, one of Elodie's optional weekend talks with her father begins with her just saying "I love you." She then starts thinking about how silly it is of her to interrupt his important work with her feelings, but then he hugs her and tells her he loves her too.
If Elodie saves the day with the power of music, Togami's children send her a drawing of a pink-haired angel.