A monkey is naive and doesn’t understand what is going on around him. This is also true with Rosaura. Rosaura came to the party thinking she was a guest like everyone else, while in reality, she wasn’t. She lacked an understanding of social class and was therefore disappointed when she found out the real reason she was attending the party.
Rosaura’s ignorance is similar to a monkey because just as a monkey is unaware of the outside world, Rosaura is too.
In addition, the monkey is different than