Is it rude to tell someone something is none his/her business? Would you be able to someone something is none of his/her business?

  • Kevin Diaz and Wendell Webster conversed. Kevin Diaz had on a blue sleeveless shirt which exposed his thick muscular arms. Meanwhile Wendell who wasn't so muscular rocked a shirt with long sleeves. During their conversation, Kevin asked Wendell why he needed Lana's number from Sean. Kevin informed Wendell about Wendell's personal relationship with his wife. Wendell replied by telling Kevin it was none of his damn business.
Is it rude to tell someone something is none his/her business? Would you be able to someone something is none of his/her business?
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