What is the author's style in Astronomer's Wife by Kay Boyle?

The style in which the story is written mirrors Mrs. Ames's increasing recognition of her feelings about her husband. When the narration describes Mrs. Ames's thoughts, the sentences are long and filled with adjectives, reflecting the freedom she has in her mind. But when the narrative begins describing Mrs. Ames's actions and her interactions with the plumber, the sentences become shorter, showing how constrained she feels.