Cass had grown quite a bit this summer and found it refreshing to go into Madam Malkins and find the biggest pair of robes to try on..
Cass thinks that having an internal monologue of how your life should be going is awfully fun, it only stops being awfully fun and awfully suck worthy when your internal monologue isn't in the least bit true. Cass has not grown and Cass doubts she will grow before she is ninety, which is her target age.
She stays near the usual corner of usual sizes and blows hair out of her face, disinterested in shopping now there's no promise of new stuff to explore.