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It’s “All for one and one for all” on the set of “The Real Housewives of New York City.”

That’s according to longtime “Real Housewife” Sonja Morgan, who claims the cast is very much there for each other.

“We’re much closer than ever,” the 56-year-old reality star told Page Six at the premiere of “Impractical Jokers” on Tuesday at the AMC Lincoln Center Theater. “This season has been great. I’m very excited.”

“We have a new addition, Leah [McSweeney],” Morgan notes of 37-year-old fashion designer and CEO behind the Married to the Mob line. “She hit the ground running and you’re going to really enjoy this season. It’s very funny. It’s dramatic.”

As for longtime cast member Luann de Lesseps, who has struggled with her sobriety, Morgan allayed any concerns fans might have following the Season 12 trailer, which showed the “Money Can’t Buy You Class” warbler sipping from a glass of vodka and proclaiming, “Oh, it tasted so good!” Lesseps, 54, who has twice been to rehab, announced in People magazine earlier this year that she was “drinking responsibly again.”

“Luann’s a good girl,” Morgan notes. “She’ll be fine.”

And how was it filming the show minus one of the show’s OGs, Bethenny Frankel?

“You know Bethenny is one of my BFFs, so I miss seeing her and I definitely miss her being on the show,” the single mom of one says. “She’s part of the DNA of the show. I know that whatever works for her, works for me, and I just want her to be happy.”

“The Real Housewives of New York City” returns to Bravo on April 2.