AceShowbiz - Jennifer Lopez and Ben Affleck almost had an impromptu reunion amid their split. The estranged couple narrowly missed an awkward run-in at an L.A. building after the singer/actress filed for divorce from her husband.

The "If You Had My Love" songstress and the Oscar-winning filmmaker were seen outside their shared Los Angeles office building just 30 minutes apart from each other on Wednesday, September 4. The 55-year-old singer was photographed entering the building with her mother, only to see her estranged husband leaving just half an hour later.

The "Shotgun Wedding" actress came to the office with her mom Guadalupe Rodriguez after grabbing lunch at the Beverly Hills hotel. She was photographed entering the building with a serious pout.

The Bronx native looked vibrant in an all-green outfit that consisted of a flowing maxi skirt, printed blouse and matching green pumps. She accessorized with a pink $1,897 Valentino Garavani purse and gold hoops.

Ben, meanwhile, was pictured leaving the building in his black vehicle just half an hour later. The 52-year-old actor/director was dressed for business in a gray suit jacket worn over a lilac dress shirt.

On the same day, Jennifer posted a clip on her Instagram page to promote her Delola Cocktail brand. She was seen in the same green outfit while pouring herself a drink.

The mother of two appeared to have had a jam-packed schedule that day. Earlier on Wednesday, she was seen enjoying a spa session a couple blocks away from Rodeo Drive. She was then seen touring two luxurious mansions in Beverly Hills.

Jennifer and Ben have not been seen together since she filed for divorce on August 20, which coincided the second anniversary of their wedding celebration in Georgia. She cited "irreconcilable differences" as the reason for the split and listed April 26 as the date of their separation.