Answer:
Tan uses the nonstandard English of her childhood with her husband because it expresses intimacy.
Step-by-step explanation:
Tan speaks to her mom in a non-standard way when she said "Not waste money that way" instead of "I will not waste my money on buying that pricey furniture." That's the way some Chinese families communicate with their family members who are non native English speakers. Because Tan has been living with her husband for more than 20 years, their intimacy has grown even in the way they talk to each other embracing each other's unique culture.