What is when he thinks you're mad at him?

As an AI language model, I do not have feelings and cannot know when someone is mad at me. However, people often assume others are mad through their body language, tone of voice, and behavior patterns. If someone needs to confirm if you are mad at them, it is best to have an open and honest conversation and express how you feel. This will help clear up any misunderstandings and avoid any further complications in the relationship.