Justin Theroux is walking his dog … after wishing ex Jennifer Aniston a happy 52nd birthday

Justin Theroux used Instagram to pay tribute to his ex-wife Jennifer Aniston on the occasion of her 52nd birthday on Thursday.

And hours after posting, the 49-year-old actor was seen strolling through New York City with his beloved rescue dog Kuma.

Theroux braved the snowy weather in a black windbreaker with a drawing of a Pit Bull on the back of it.

He put the jacket over a black hooded sweatshirt and put on a pair of ripped jeans.

To trek through the snow, Theroux put on a pair of stylish combat boots.

To add some extra warmth to his ensemble, the Mulholland Drive star wore a black beanie and a pair of leather gloves with red details.

To adhere to COVID-19 protocols, Justin hid his mouth and nose with a face mask.

Justin walked down the sidewalk and through several piles of snow with Kuma’s belt wrapped around his hand.

Kuma, whom Theroux often shows off on his Instagram, looked adorable in a padded dog jacket as he trotted alongside his owner.

As a tribute to Jennifer, Justin shared a glamorous photo of his former partner going up a spiral staircase with a mirrored wall, writing: ‘[heart] you B! ‘

It is not known why the star of The Leftovers often calls her by the nickname B, since the letter is not in between her initials – her middle name is Joanna.

The couple were married from 2015 to 2017, but managed to stay friendly after what Justin previously called a “ soft divorce. ”

The Friends icon glanced over her shoulder as she climbed the stairs, modeling a long, flowing overcoat.

They announced their split in February 2018, and a few months later, Justin told the New York Times how amicable the process had been.

“The good news is, this was probably the most – I choose my words very carefully – it was kind of the softest part, in the sense that there was no hostility.”

The Tropic Thunder writer added, ‘In a weird way, it’s just kind of navigating the inevitable perception of it the exhausting part.’

Justin, who is three years younger than Jennifer, married her in Bel-Air in 2015 and they split up about two years later.

Justin and Jennifer started dating in 2011 after working on the movie Wanderlust together. He had a 14-year relationship with costume designer Heidi Bivens that collapsed in 2011.

At the time, E! News claimed that, according to a friend of hers, Heidi had been “dumped outright,” though the report qualified, “Not to say it’s Aniston’s fault, maybe the timing was just awful?”

“Things were over between him and Heidi before he got close to Jen,” ​​a source in Justin’s camp urged Page Six.

Heidi’s mom Marilyn spoke to Radar Online in 2016, claiming that Justin initially tried to convince Heidi that he and Jennifer weren’t an item.

Marilyn said, ‘Heidi told me what Justin had told her, that something was going to be written about him and Jennifer, that there was something going on between them and he wanted her to know it was nothing, nothing was going on . ‘

Eventually, Heidi discovered that the rumors were true: “And my sweet Heidi, she calls me and says,” Oh mama. ” I had cancer at the time. It was a time that hurt our family. Marilyn recalled.

Last year, the audience saw how much Jennifer’s relationships have unfolded with her first husband Brad Pitt, who infamously left her for Angelina Jolie in 2005.

Brad and Jennifer both won acting trophies at the SAG Awards last January – where he joked onstage about his failed marriages.

He sarcastically said it was ‘hard’ to play a ‘man who gets high, takes off his shirt and doesn’t get along with his wife’ in Once Upon A Time In Hollywood.

The camera then cut to the audience where his Jennifer clapped at the joke and carried an expression of wry recognition.

She and Brad had a friendly chat behind the scenes – and as she walked away, she put a hand on his chest and he held her wrist for a moment.