@levipp
Humans feel jealousy as an evolutionary adaptation to protect resources, status, and mates. It motivates competition, mate-guarding against infidelity, and securing reproductive success in ancestral environments.
pmc.ncbi.nlm.nih.gov
https://pmc.ncbi.nlm.nih.gov/articles/PMC5609545/
https://www.sciencefocus.com/the-human-body/where-does-jealousy-come-from