Besides the Eltons, Mr. Knightly, the Westons and Harriet were to attend, but Harriet declines and Emma invites Jane Fairfax in her place. During the party they discuss Jane's trip to the post office and her handwriting. Mr. Knightly makes another disparaging comment about Frank Churchill, claiming his writing is like a woman's, while Emma wonders what letters Jane might receive. Although it is obvious to all that Emma dislikes Mrs. Elton, she is forced to invite the Eltons to dinner at Hartfield for reasons of propriety. There may be subtle signs and indications of animosity between the two women, but Emma cannot allow such a public statement of dislike.
Propriety takes precedence over true feelings and emotions.
In light of Mr. Knightly's earlier comment about how others have snubbed Jane Fairfax, Emma attempts to remedy the situation. Her invitation to Jane, unlike inviting Mrs. Elton, is genuine and sincere. Emma is more and more interested in Jane Fairfax. She still suspects that Jane is somehow involved with Mr. Dixon, even though she has no real evidence. All of the real evidence points to Frank Churchill instead.