Anyone gossiping about you is insecure and wants to feel superior.
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We often project the opposite of reality when we are coming from a place of insecurity.
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Question what you are gossiping about does it provide any value or simply hurts others.
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Anytime you place yourself above others you are falling into arrogance.
It is highly likely you are feeling insecure about something yourself. Look at the previous confidence vs. Arrogance post for more info.