Final answer:
The text implies that Ruth and other characters feel upset due to emotional dissatisfaction stemming from their environments and relationships.
Step-by-step explanation:
The text does not explicitly state why Ruth is upset upon returning home. Nevertheless, by examining the context and the passages provided, one might infer that Ruth, like many other characters, faces emotional dissatisfaction or struggles rooted in their environments and relationships. For instance, Mrs. Peters and Mrs. Hale discuss the broken birdcage and the untended life of Minnie Foster, suggesting a life of neglect and a desire for care that did not exist. Likewise, another character expresses a longing for the warmer, more personable environment of home, indicating that the absence of this feeling can lead to unhappiness. The consistent theme across these scenarios is the impact environment and connection, or lack thereof, have on individual well-being.