According to Radar Online Garner, 42, recently cancelled a family trip to Detroit, where the Oscar-winning actor is currently filming Batman v Superman: Dawn of Justice, because "she just doesn't want to be Ben's enabler or babysitter."
Reports about the couple's alleged problems come two weeks after Affleck was reportedly kicked out of a casino in Winsdor, Ontario following an earlier incident in which he was accused of card counting in a Las Vegas casino in early May.
"[Garner] was absolutely mortified about the Las Vegas incident, and everything has really gone downhill since then," an insider told Radar. "She's completely distraught over Ben's problems. It's a never-ending roller coaster."
According to the publication, the Argo star has been frequenting local casinos on a regular basis during his shoot in Michigan. The casino he was allegedly kicked out of in late May is just a 10 minute drive from downtown Detroit.
"Ben has a compulsive personality," another source said. "Once he starts gambling, he can't stop and he stays up all night, betting thousands, then sleeps all day, which infuriates Jen.
Celebrity Families of 2014 [PHOTOS]