Learn the tone, meaning, and better English alternatives around "my best friend" with real scene examples.

This means the speaker believes someone close to them has broken trust.
From Mafia Lord'S Son Has Secret Love For His Stepmom, Episode 5
A person says they feel betrayed by a close friend and business partner.
Use it when talking about betrayal in friendship or business. It sounds dramatic and serious, so it works best in emotional contexts.
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