"My God, I believe the man's coming," said Tom. "Doesn't he know she doesn't want him?"
Chapter 6 · Tom Buchanan
Context
After the woman in the riding party politely invites Gatsby to dinner, Mr. Sloane clearly signals that the invitation is not genuine. Gatsby, missing these social cues, goes inside to get his coat. Tom expresses disbelief at Gatsby's apparent obliviousness to the social rejection.
Analysis
The dramatic irony operates on two levels: Tom's 'she doesn't want him' applies literally to the hostess but resonates with the broader situation of Gatsby pursuing Daisy, while Tom remains unaware that Gatsby's real social interest is not the riding party but Tom's own wife. Tom's contempt also reveals old money's assumption that class boundaries are self-evident—to him, Gatsby's inability to read the snub confirms his social illegitimacy.
How to Use in Essay
Effective for essays on how the novel dramatizes class exclusion through social codes invisible to outsiders, or for analyzing the dramatic irony of Tom unwittingly commenting on his own cuckolding.