Jennifer Aniston has stepped out in Los Angeles the day after confirming that she and Justin Theroux have split after two and a half years of marriage.

Wearing frayed jeans, a black jacket and oversized sunglasses, the unsmiling actress reported in a Range Rover to the Sony Studios lot, escorted by security.

On Thursday (US time) Aniston and Theroux went public with their private news, saying in a statement their decision to break up was “mutual and lovingly made at the end of last year.”

It followed speculation they were on the rocks, sparked by Aniston, 49, showing up alone to the Golden Globes in January.

She was also solo at Ellen DeGeneres’s star-studded 60th party on February 10, then the next day celebrated her own birthday in Malibu with a group of girlfriends but not Theroux, 46.

“We wanted to convey the truth directly,” said the statement released by Aniston’s publicist Stephen Huvane to ABC News.

“We are two best friends who have decided to part ways as a couple, but look forward to continuing our cherished friendship.

“Above all, we are determined to maintain the deep respect and love that we have for one another.”

A source close to Aniston told People magazine the pair have been apart for several weeks.

“Jen has continued her life as usual,” the source said. “She has seemed fine. There has been no indication that she is upset.”

Weeks ago, in the March issue of Architectural Digest, Aniston gave a tour of the Bel Air mansion she and Theroux bought together in 2012 and have spent years renovating.

“I look around at my husband and my dogs and our home, and there’s nowhere else I want to be,” she told the magazine.

So, what went wrong?

Theroux and Aniston were close at the 2017 Vanity Fair Oscars party. Photo: GettyEven though they had already secretly decided to end things, Aniston and Theroux rang in 2018 in Cabo, Mexico, with friends including actor Jason Bateman.

Despite having already decided to end things, Aniston and Theroux seemed “great and very happy” ringing in 2018 in Cabo, Mexico, with friends.

She was snapped in a red bikini as they swam together, and “they hosted friends by the pool and for dinner,” a source said.

Since then, Theroux (The Leftovers, The Girl on the Train) was seen in New York walking his dog while Aniston remained at their $28 million home.

This year saw scheduling conflicts, as she filmed Dumplin’ in Atlanta while Theroux shot comedy The Spy Who Dumped Me in Budapest.

But until now, sources said time apart was a “healthy part” of Aniston and Theroux’s romance and the actress enjoyed “her own life” when he was away.

“By not spending every minute together, it’s like their honeymoon is lasting longer,” one told People.

The pair went to a party at the Louvre during a Paris trip in April 2017. Photo: Getty

Last photographed together at a Hollywood event in July 2017, the pair began dating in 2011, three years after they met on the Hawaii set of Tropic Thunder. Theroux proposed on his birthday in 2012.

At their surprise wedding in their backyard in 2011, “They seemed ecstatic,” said a friend.

Their Bora Bora honeymoon made headlines when they invited along large group of friends including Jimmy Kimmel and Chelsea Handler.

Aniston’s 2000 first marriage, to Brad Pitt, ended in 2005. Theroux had never been married before.

Acknowledging that their breakup would generate headlines, the pair warned in their statement, “Whatever else is printed about us that is not directly from us, is someone else’s fictional narrative.”