Tuesday night's episode of Real Housewives of New York, titled Unforgiveable Debt, had Ramona Singer doing the unforgivable... sort of.

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 Singer splashed a glass of champagne in Kristen Taekman's face, when Taekman hinted she was jealous of Sonja Morgan. The appropriately named season finale, The Last Splash will feature Kristen possibly taking back the reigns when she asks her husband to review Sonja's business plan.

"Sonja is the only person I know that could play off bankruptcy fabulously," said Taekman, referencing the money woes that dog Morgan (who could lose her home) according to People Wednesday.

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While on a spa dates with the ladies, Taekman stood up for Morgan against Morgan's former bestie Singer when it came down to that 23-year-old boy-toy.

"I wanted to get a little dirt on him," Singer admitted to Morgan. "He's a little young. He could be your son. It's incestuous. [Sonja] thinks between her legs instead of with her head," admonished Singer.

"She ruined my relationship," said Morgan

"Maybe Ramona's jealous," hinted Taekman.

And then it happened: Singer actually tossed a glass of champagne in the model's stunned face.

"Are you crazy?" asked Taekman, who then doused Singer with water. "Is this normal behavior for a woman her age?"

"Kristen, you're a real b----!" yelled Singer, upset that her hairdo was water-ruined.

Even Morgan was upset that Singer's hair was ruined.

The Real Housewives of New York City is winding down to its last breath with The Last Splash, according to Tuesday's The Epoch Times.

It will include "Kristen asking her husband to review Sonja's business plan and Carole going to a matchmaker."

It is unclear whether RHONY will be renewed for a 7th season. It has been facing declining ratings.

Tune in Tuesday nights to Bravo at 9/8c for RHONY.