Yung Miami says her association with Diddy affected her pocketbook … claiming she lost money — and more — because of her relationship with the mogul.

The rapper sat down for an interview with Charlamagne tha God on “The Breakfast Club” Tuesday … and he asked her if being tight with Diddy had cost her something in the real world — something more substantial than an influx of online hate.

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YM says it cost her views, money — and even relationships with people in her life … all of which has been very hard on her.

She also talked about why she’s stuck by Diddy despite all the controversy surrounding him … and she explains it’s because Diddy’s always been good to her, and completely changed her life. She says she judges people based on personal knowledge — not based on public opinion.

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Of course, Diddy’s persona non grata in Hollywood right now after he was arrested and hit with multiple charges, including sex trafficking. While he was acquitted on three of five charges — the jury found him guilty on two counts of transporting people across state lines for prostitution — he’s still on the outs with many online and in the entertainment business as he serves his 50-month sentence.

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As for whether Yung Miami feared being called to testify at his trial … watch the clip all the way through to hear her unequivocal response.

Bottom line … Diddy isn’t everyone’s favorite person right now — and Yung Miami says she’s paying the price for her loyalty.