jealousness

Example:She was jealous of her sister's new job, which seemed more glamorous and better paid.

Definition:Feel envy or resentment towards someone or something, typically because of a perceived advantage held by that person or thing.

Example:Their relationship ended in a blaze of jealous arguments about the other’s new friends.

Definition:Argumentative exchanges driven by jealousy, often emotional and focused on the consequences of the other person obtaining or maintaining something desirable.

Example:He shot a jealous glance at her as she started talking to a man he thought was a rival.

Definition:A glance full of envy or suspicion, typically expressing resentment towards someone or something.