Jealousy is the emotion of mate guarding, paying attention to the behavior of our mates around others. There are many evolutionary reasons for this, and Dr. Miller explains why a little jealousy can be good. Also, be honest with yourself about why you are in a relationship. Tucker and Nils give advice on mate value in different life stages. And Tucker runs through 5 quick questions to ask yourself to understand if a relationship is going to last or if she will eventually look for and find someone else.
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