Answer: It shows her strong connection to her heritage.
Step-by-step explanation:
Latina people are descended from the Spanish people when they intermarried and colonized extensive parts of the Americas and as a result, the primary language of the Latino people is Spanish.
In using Spanish words instead of English, the writer is trying to show her connection to her Latina heritage that uses Spanish to communicate. This is much like Chinese people using Chinese to describe their food so that people know that the food is of Chinese origin.