Nicole Kidman is “sad, but moving on,” pals say, after her marriage of 19 years to Keith Urban crumbled.

A source told us, “She’s sad and moving on with her life — and making sure her kids are taken care of.”

On Monday, Page Six confirmed that Urban, 57, and Kidman, 58, had called it quits.

“Sometimes relationships just run their course,” a source told us at the time, adding that the “Eyes Wide Shut” actress “did not want the separation and was trying to save things.”

Multiple sources told TMZ that the couple, who tied the knot in 2006, have been living apart “since the beginning of summer,” with Urban in his own place in Nashville, Tenn.

Kidman has reportedly been caring for their teen daughters, “holding the family together through this difficult time since Urban has been gone” on tour, per TMZ.

The outlet also reported that the country crooner is rumored to be seeing someone else.

“All the signs point to the fact that Keith is with another woman,” a source close to Kidman alleged, though it’s not clear when he struck up the romance.

“Let’s just say Nicole doesn’t dispute that, but she’s still shocked over it.” Another insider claimed the rumors are “all over Nashville.”

Reps have not commented.

Kidman filed for divorce one day after the split news broke.

In the docs, obtained by Page Six, the “Perfect Couple” star requested that she be the “primary residential parent” of their two daughters for 306 days out of the year.

Sunday, their eldest daughter, hit the catwalk for Dior’s Paris fashion week show yesterday.

The 17-year-old has twice walked the Miu Miu runway, and revealed in March that designer

Miuccia Prada gave her some pointers. “Ms. Prada actually told me to take larger steps when you walk because it’s more elegant. And you also are able to do it faster, so it looks a lot better,” she said. “I feel a lot more confident this time . . . I feel like I’ve been able to express myself more.”