Ben Affleck kisses Matt Damon's wife after Jennifer Lopez holds Damon's hand at 'Unstoppable' party

Ben Affleck was seen giving a friendly kiss to his best friend Matt Damon's wife, Luciana Barroso, this week – just days after Damon was spotted holding Jennifer Lopez's hand, who is Affleck’s ex.

Damon, 53, and Lopez, 55, caught attention at the Unstoppable afterparty last week as they sat in a quiet corner, having what seemed to be a deep conversation.

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Affleck, currently divorcing Lopez after two years of marriage, was seen warmly greeting Damon's wife of 19 years as he arrived at his office in LA.

Courtesy: BACKGRID

Luciana, smiling, embraced Affleck while he kissed her on the side of the head, dressed in a navy suit.

Luciana, who used to work as a bartender, wore a black blouse and slacks during her meeting with Affleck.

Matt and Ben have shared a close friendship for over 40 years.

Their big breakthrough came in 1997 when they won the Academy Award for Best Original Screenplay for Good Will Hunting.

Affleck is producing *Unstoppable*, a sports drama about Anthony Robles, born with one leg, who became a champion wrestler in college, even competing against the school that had rejected him.

Jennifer has a supporting role in the movie.

Affleck chose not to attend the red carpet event in Toronto to avoid a potential public encounter with his ex.

Earlier this summer, a source remarked on how the *Let's Get Loud* singer spent months attempting to save her marriage, but ultimately couldn’t overcome Affleck's internal struggles.

“She loves him, she will always love him, that's the problem,” a source close to the Wedding Planner the actress told Page Six.

"Ben has a darkness to him that no other person can fix. Jen Garner couldn't fix it, all the success in the world couldn't fix it," the source added.