Certainly, cats feel emotions. But jealousy and revenge aren't emotions. They are complex thought processes that are set in motion in response to emotions. Simply put, a cat does not have the brain power for plotting revenge or feeling that an injustice was done to him.

Are cats vengeful?

Anger involving grudges or revenge is solely a human emotion, says Dr. Schwartz. A cat may become aggressive, but not angry and vengeful in the human sense.

Why are cats so spiteful?

You may think your cat is being spiteful when he urinates on your stuff — but the truth is that he's probably stressed. ... But cats are easily stressed, and when stress enters their lives, they often respond in ways that are comforting to them but crazy-making to us.