Ex-'RHONJ' Star Danielle Staub -- Sex Tape Partner Gets Screwed ... in Bankruptcy

"Real Housewives of New Jersey" star Danielle Staub will probably get the cold shoulder the next time she shops at Nordstrom ... because she just screwed them over in bankruptcy court ... and she royally screwed the guy in her sex tape in the unforgettable onion bagel scene.

Staub got a sweet deal in bankruptcy court, excusing more than $200,000 in debt. Among those who are saying bye bye to their money ... Sex tape partner Stephen Zalewski won't get $100K from his defamation lawsuit against her.

In addition to Nordstrom, which is out more than $7K ... Ford is saying bye bye to $3K, American Express is out more than $7K. and her lawyers are out more than $30K ... but no one feels sorry for them.