Wilson, 34, and Jackson, 38, were spotted drinking and eating at Gemma Restaurant in New York City’s East village – an early meal that turned into a late night for the good friends.
The pair chatted and dined until the late hours Monday, stopping to pose for photos and chat with friends.
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Jackson and Kruger, 40, have been seen together several times since announcing their breakup, including on Friday when they were spotted hugging at the Los Angeles International Airport.
A source told PEOPLE of the tight embrace: “They said they would remain friendly and they have.”
The Affair returns for season 3 on Nov. 20 at 10 p.m. ET on Showtime.