Sexton accompanied the "Batman" star on a trip to Montana over the weekend days after Affleck wrapped up his stint in rehab and finalized his divorce with Jennifer Garner.
The 22-year-old model was at the center of Affleck's downfall weeks ago, especially when he received a shipment of alcohol to his home in the middle of the day. However, their most recent outing seemed to be free of alcohol and instead focused on nature, waterfalls and fishing.
Sexton even snapped a photo of Affleck checking out a deer during the trip before the two caught some rainbow trout. According to Sexton's Instagram, it appears they caught a Sunday night flight back home to Los Angeles.