“The Real Housewives of New York City” celebrated their 10th season Wednesday night without co-star Bethenny Frankel.

“Everyone was asking about it,” a spy at the NYC soiree told Page Six on Thursday. “She supposedly didn’t want to attend the party because she wants to disassociate herself as a ‘reality star’ and would rather focus on her business career.”

But it turns out that Frankel, 47, was actually on her way to promote “Housewives,” as well as her upcoming Bravo series with Fredrik Eklund, overseas.

“She didn’t attend as she is on her way to Australia to promote ‘Bethenny and Fredrik’ and ‘RHONY,’” her rep told us. “She was on ‘Megyn Kelly’ referring to Bravo as her family. She has been incredibly supportive of Bravo and the shows.”

Meanwhile, her co-stars may not be as supportive, as they were caught sipping Tequila Avion instead of Skinnygirl cocktails in her absence.