I read this word and it’s definition and the word confidante came to mind. Who knew? They can be used interchangeably.

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Confidant, or Confidante?

What are the differences between "confident," "confidant," and "confidante"?

A "confidant" or "confidante" is a trusted person or someone to whom private matters are confided. (The words "confidant" and "confidante" are interchangeable, but strict grammarians reserve "confidant" for males and "confidante" for females.)

I learned more than planned today. Excellent word choice @Myr.