I must not have been paying close attention as I didn’t realize the excerpts were from the same person - I thought they alternated between the sisters.
I liked it, seeing Inez’s thoughts from “outside” of Rita’s daily life and experiences. It drew the story together in a way it might not have otherwise.
I think this was a great technique. It seemed a very personal way for the reader to learn about the deep bond between the sisters. Inez’s heartfelt writing provided a backdrop for the developing story.