"If a woman is quiet, it doesn't mean she's mad at you . . . "
In various cultures, silence means several things. Many anthropologist and psychologist pertain to silence as an act of affirmation or admittance to certain misconducts. For most men, silence portrays to anger. They always think that when a woman gives them a silent treatment, it automatically means that there is something wrong. Women as you know are complicated beings. There are things that without prior knowledge, women’s actions are misinterpreted.
As a general observation, silence for women doesn’t always mean madness or anger. It is just a state or a sign for you to contemplate on your actions. Take note, that women are emotional beings. If they are mad, they vocalize their thoughts. Maybe if she is giving you the silent treatment then you are missing out on something great.