Ben Affleck returns to rehab after a short visit with Shauna Sexton: Pic

Ben Affleck returned to rehab in Malibu, California after being spotted at home at Pacific Palisades on Wednesday.

The 46-year-old actor was dressed with black shorts and a hoodie, marking his first observation since he entered rehab two weeks ago. He also met his interest in the rumor, the Playboy model Shauna Sexton, while his blue car was spotted at home. AND learned that Affleck was at home training, but has not left his treatment yet.

On Wednesday afternoon, Affleck was caught being brought back to rehab and he seemed to be in a good mood looking at his phone.

Meanwhile, Affleck's ex-wife, Jennifer Garner – who drove her to the rehab center on Aug. 22 – was busy promoting her new action movie. Pepper mint in New York on Wednesday. The 46-year-old actress looked classy in a sleeveless white dress and bare heels as she exited the Greenwich hotel.

A source told ET that Garner knew that Affleck had met Sexton, 22, on Wednesday and that he was "frustrated" by the situation, given that the actor's friends were in trouble. worry about his relationship with the model.

"He had kept in touch with Shauna all the time that he was in rehab and the people of the establishment and his friends were very worried because she was not sober," says the source. . "She's a huge red flag for all those who are trying to support Ben in his process.Shauna gives him a false confidence and that's their biggest concern."

"Jen knows he's back home with Shauna and is painfully frustrated," the source said. "She knows that he has to do this for himself."

Meanwhile, the source says that Affleck continues to work on himself during his third pass in rehabilitation. AND learned that Affleck is allowed to train a few hours a day at his home during his treatment and that he is always accompanied by his sober coach and therapist.

"It has been an intense challenge, but he has no choice," the source said. "For Ben, it was a life-and-death situation, it was very serious and it's the main reason why Jen did not have any other choice than to get involved. "

"He thinks he's strong enough to venture outside the facilities with sober coaches," the source adds.

At the end of last month, Garner was stunned at the Los Angeles premiere of Pepper mint, its first appearance on the red carpet since the recovery of the Affleck. Look below: