Ben and Jen were in the Bahamas with their children as news broke of their split last Tuesday, with the Batman v Superman star departing on Friday, July 3, alone. According to an eyewitness, Ben appeared "very nervous," and "seemed uncomfortable" at the docks, where he was transported to a private airport.
On Sunday, Ben was spotted riding around his Brentwood neighborhood on both his motorcycle and his truck, and another eyewitness tells ET he appeared "sad and despondent." Ben was also no longer wearing his wedding band, which he was spotted with a day before in the Bahamas.
The A-list exes were cordial to each other during their family vacation, a source tells ET, though the two were locked in serious conversation at one point, with Ben appearing "distracted." "They seemed to just stare off into space out to the ocean a lot of the time, and were in total silence," the source says.
Photos: Ben and Jen throughout the years
Ben and Jen through the years
EXCLUSIVE: A somber Ben Affleck returns from Bahamas trip with Jennifer Garner
Actor Ben Affleck and wife, actress Jennifer Garner smile at catcher Doug Mirabelli #28 of the Boston Red Sox as they attend the game against the New York Yankees during the game at Fenway Park on October 1, 2005 in Boston, Massachusetts. (Photo by Jim McIsaac/Getty Images)
Actors and husband and wife, Ben Affleck and Jennifer Garner listen to the national anthem before the Boston Red Sox host the New York Yankees on June 2, 2007 at Fenway Park in Boston, Massachusetts. (Photo by Elsa/Getty Images)
Actress Jennifer Garner (L) and actor/director Ben Affleck, winner of Best Picture for 'Argo', departs the Oscars at Hollywood & Highland Center on February 24, 2013 in Hollywood, California. (Photo by Frazer Harrison/Getty Images)
Jennifer Garner and Ben Affleck attend the Boston Celtics versus the Orlando Magic in Game Seven of the Eastern Conference Semifinals during the 2009 NBA Playoffs at TD Banknorth Garden on May 17, 2009 in Boston, Massachusetts. (Photo by Elsa/Getty Images)
Actor Ben Affleck and actress Jennifer Garner pose during the 16th annual Critics' Choice Movie Awards at the Hollywood Palladium on January 14, 2011 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for VH1)
Actress Jennifer Garner and actor-director Ben Affleck arrive at the Oscars at Hollywood & Highland Center on February 24, 2013 in Hollywood, California. (Photo by Jason Merritt/Getty Images)
Ben Affleck and Jennifer Garner are seen in Brentwood on April 24, 2015 in Los Angeles, California. (Photo by GONZALO/Bauer-Griffin/GC Images)
LOS ANGELES - FEBRUARY 9: Cast members (L to R) Colin Farrell, Michael Clarke Duncan, Jennifer Garner and Ben Affleck pose for photos at the premiere of 'Daredevil' at the Village Theatre on February 9, 2003 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)
(EXCLUSIVE, Premium Rates Apply) Jennifer Garner (on screen) and Ben Affleck *Exclusive* (Photo by Mathew Imaging/FilmMagic)
(EXCLUSIVE, Premium Rates Apply) Jennifer Garner and Ben Affleck *Exclusive Coverage* (Photo by Mathew Imaging/FilmMagic)
Jennifer Garner and Ben Affleck during Ben Affleck and Jennifer Garner on Location for ''Gone Baby Gone'' in Boston, Mass - May 24, 2006 at on location in South Boston, Massachusetts, United States. (Photo by Marc Andrew Deley/FilmMagic)
Actor Ben Affleck and actress Jennifer Garner come off stage at the 24th Annual American Cinematheque Award presentation to Matt Damon at The Beverly Hilton hotel on March 27, 2010 in Beverly Hills, California.
LOS ANGELES, CA - DECEMBER 16: Jennifer Garner and Ben Affleck in Brentwood on December 16, 2012 in Los Angeles, California. (Photo by Bauer-Griffin/GC Images)
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Last week, a source close to the situation told ET the split is amicable, and that the two have been in therapy for close to two years trying to make things work. The source adds that they are believed to be working with a mediator on the terms of the divorce. No formal paperwork has actually been filed yet.