Jennifer Aniston Appears to Subtly Debut Boyfriend Jim Curtis on Instagram

Jennifer Aniston is grateful for all of the people she spent summer with.

The Emmy winner, 56, bid farewell to summer by sharing an Instagram carousel on Sunday, Sept. 7, filled with photos of loved ones and celebrity friends, including Courteney Cox, Adam Sandler and Jason Bateman.

Among the photos is one of the back of a mystery man’s head that her fans suspect is her boyfriend Jim Curtis, who is an author and life coach.

The man in the penultimate photo in the carousel can be seen looking at the sun setting above the ocean. The back of his head and shoulders are additionally covered by the shade, masking his appearance even more. 

“Thank you summer,” she captioned the carousel. 

Fans in the comments section have jumped to the conclusion that the man in the photo is Curtis, with one writing, “The soft launch.”

“You think we wouldn’t notice photo number 17?” wrote another person, adding a series of red hearts, in response to the lovey-dovey snap.

Other images in the post show the Friends alum on a walk in the park on a sunny day, lying on the ground after an intense workout and getting a blow-out on her hair.

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PEOPLE confirmed that Aniston and Curtis were dating in July. An insider revealed at the time that the two are “casually dating and having fun.” Another source said that the pair had already been seeing each other “for a few months” after being introduced to each other by a friend.

In August, a source said that Curtis is bringing out new sides of Aniston.

“Jim’s great. Her close friends love him. He’s amazing to be around. He has this really calm and secure energy. Jen loves it,” the source said.

More recently, the couple were spotted on a date night in New York City on Sept. 5. The actress wore a white T-shirt and light blue jeans, along with a fitted tan blazer for the dinner outing. She paired the look with a black leather handbag, black flip-flops and gold hoop earrings. 

Curtis, meanwhile, wore a brown jacket and a white shirt with a pair of dark pants and white sneakers. 

The pair have been spotted on double dates in both N.Y.C. and Los Angeles, stepping out for a three-hour date with Bateman and his wife, Amanda Anka, and on another occasion, with Cox and her partner, Johnny McDaid.