After almost three decades of marriage and a fruitful political partnership, former Mayor Bill de Blasio and wife Chirlane McCray announced their separation Wednesday.

De Blasio and McCray won’t divorce, and plan to continue living together in their Park Slope townhouse. But they now intend to date other people — intimate news they chose to share in a deeply personal, three-hour interview with the New York Times, which published the story Wednesday.

De Blasio shared the story on Twitter, adding: “Even at this moment of change, this is a love story.”

McCray later addressed reporters outside their home.

“Bill and I are still very much in love,” she said. “We came to this decision together,” she said.

McCray and de Blasio first met while both were working for former Mayor David Dinkins. They married in 1994, despite McCray having previously identified as a lesbian.

Eventually de Blasio’s biracial marriage and family became central to his political brand, with his son, Dante, famously starring in a campaign ad in 2013.

For de Blasio, voters were getting a package deal.

“We’re a partnership. We’ve always been a partnership,” he said in 2019.

He and McCray became known for sometimes cringe-inducing shows of affection. And de Blasio put his wife in charge of a heavily scrutinized mental health initiative.

One source of friction, they now say: de Blasio’s failed presidential run in 2019, which she was skeptical of.

Mayors have made relationship choices public before, with Rudy Giuliani announcing a split with his then-wife, Donna Hanover, at a press conference in May 2000.

“Over the course of some period of time, in many ways, we’ve grown to live independent and separate lives,” he told reporters.

He had given no heads-up to Hanover, who then held a competing news conference accusing Giuliani of a previous infidelity.

De Blasio and McCray’s decision, by contrast, seems free of acrimony, at least as they tell it.

“I hope that we can be a model for how couples can communicate honestly about what their needs are and how to conduct themselves when they find it’s a time to move in a different direction,” McCray said Wednesday. “I think that’s important.”