Someone who believes jealousy is about love has little motivation to examine it closely, and little faith that they could lessen it. … Jealousy is definitely not aboutlove. At least, it’s not only about love. It’s also about fear of loss, insecurity about one’s worth, possessiveness, all sorts of unpleasant feelings.

Many people glamorize jealousy by saying it’s a sign of love. It’s not! It’s a sign of insecurity and reflective of seeing your partner as an object to be possessed. It’s a negative emotion stemming from both desire and insecurity, but not love.
Acting overbearing and possessive can change a loving relationship into one filled with envy, terror and control. Possessiveness comes from feelings of insecurity in a relationship. … This is not only a concept found in intimate relationships, but friendships as well.