In "Odalie Misses Mass," what does Kate Chopin say about southerners using ironic criticism?

In "Odalie Misses Mass," the main character, Odalie, is a young white girl who goes to visit her an older black woman named Aunt Pinky. At first, Odalie says and does many things that could be conceived of as critical of Aunt Pinky. Odalie intends to only stop for a minute at the old woman's house to "show herself." As Odalie displays her church outfit and turns about "like a mechanical dummy," Aunt Pinky laughs. As Chopin writes, "Aunt Pinky beamed and chuckled; Odalie hardly expected her to be able to do more." Odalie is content at first to merely display herself to Aunt Pinky, and then she expects one of Aunt Pinky's relatives to come to watch the older woman. When Odalie learns that a relative of Aunt Pinky's named Pug isn't present, "Odalie's plump cheeks fairly quivered with indignation and she stamped her foot." Later, when Odalie orders a black boy named Baptiste to call his mother to sit with Aunt Pinky, he says his mother has gone to church. Odalie responds, "w'at's taken you all darkies with yo' 'church' to-day?"
At first glance, Odalie seems dismissive of Aunt Pinky and superficial in her appreciation of the older woman. Odalie also seems contemptuous of the black people around her, as she doesn't appreciate that they have gone to church on Assumption, just as she wanted to. However, this criticism on the part of Odalie is ironic, as she truly loves Miss Pinky and brings her water in a gourd. She then sits by Aunt Pinky as her older friend slips into reveries from days gone by. Chopin writes, "Odalie had grown accustomed to these flights of fancy on the part of her old friend; she liked to humor her." Odalie comforts Aunt Pinky and falls asleep on her knee as Aunt Pinky dies. In the end, she is there to comfort Aunt Pinky as the older woman dies. Therefore, the criticisms that Odalie, a white southern girl, initially directs at Aunt Pinky are ironic in that she truly loves the older woman. Odalie cloaks her love for Aunt Pinky in these criticisms, and perhaps Chopin's message is that despite generalized racism, white individuals did develop real affection for the black people around them; the presentation of this affection in the midst of a racist society often created irony.