Final answer:
The Madame and Mademoiselle L'Espanaye led reclusive lives due to their lack of social interactions and outings.
Step-by-step explanation:
The lifestyle led by Madame and Mademoiselle L'Espanaye can be described as reclusive.
They did not receive visitors or go out of their house frequently.
This type of isolated and private life was common among aristocracy in France during a certain period of time, as mentioned in the reference text.
The aristocracy, who had great wealth and power, often lived in luxury and excessive indulgence, forming a contrast to the lives of ordinary people.