For the most part, Ramona Singer is loving her new single-girl life in the city. But right now, she’s worried about her ex-husband, Mario, who plans to stay in South Florida despite the oncoming Hurricane Irma.

“My daughter and I are concerned that he won’t evacuate. We both reached out to him,” Singer, who attended Nicole Miller’s New York Fashion Week show at the Gramercy Park Hotel, tells The Post. “But he says that he’s gonna bunker down and sit this one through.”

This bout of fretting aside, the “Housewife,” who stunned in a Self Portrait dress, has been living her best post-divorce life. When she’s not busy renovating her Upper East Side condo and Hamptons home, she’s pampering herself.

“Now that my daughter is out of the house and I’m single, I’ve really focused more on taking care of myself and treating myself to nice clothes,” she says.

Singer demurred from discussing her current dating status. But she’s more open about her relationship with her castmate Bethenny Frankel — despite their dramatic spat at the last “Real Housewives of New York City” reunion.

“We’re in a better place,” Singer says. “She’s heading down to Texas with her foundation to help people who were affected by Hurricane Harvey, so I decided to donate to her foundation. I’m so proud of her.”