How do you know if you hurt your cats feelings?

In my experience cats are very temperamental creatures. With that being said, I believe they are only temperamental due to their environment or circumstances affecting them. Example: the arrival of a new family member or pet could throw your cat into uncharacteristic behavior or the feeling that your cat hates you. Evaluate the situation and see if something has changed that could make your cat fearful or unsure of his new environment.