updated 04/23/2014 AT 4:00 AM ET
•originally published 04/23/2014 AT 8:55 AM ET
The Real Housewives of New York City celebrated the Fourth of July on Tuesday night’s episode, and – of course – there were plenty of fireworks.
The biggest sparks, however, turned out to be the biggest surprise, as BFFs Ramona Singer and Sonja Morgan got into a heated exchange at a Hamptons holiday party Singer hosted.
After the two had earlier discussed Morgan’s Chapter 11 bankruptcy and her mounting concerns she might lose her home, the talk turned tense while testing Singer’s newest wine.
“It has a little burn to it,” said Morgan as she sipped.
“I don’t taste any burn,” said Singer, “and I have a pretty good palate.”
That’s when the wine turned to whine.
“I heard it was a little raunchy,” Singer said of the caburlesque show she missed that Morgan hosted for the LGBT center in the Hamptons.