Explain why Elinor is bothered by Marianne’s behavior and compare Marianne’s praise of Willoughby with Elinor’s earlier praise of Edward

After Marianne spends the morning at Allenham with Willoughby, Elinor says: “I am afraid…that the pleasantness of an employment does not always evince its propriety.” This quote indicates that Elinor’s sense of propriety and Marianne’s sensibility come into conflict regarding Willoughby.