Ben Affleck and Playboy model Shauna Sexton are still going strong! As strong as you can go when one half of the relationship is in rehab!

The 22-year-old beauty is driving Ben's Ford Expedition, paying visits to the Pacific Design Center to put in orders for furniture to make the actor's Pacific Palisades mansion a bit more homey, and she's visiting him in rehab!

Sexton arrived at The Canyon treatment center in Malibu on Sunday promptly at 1pm, the beginning of visiting hours, and left 5pm, the absolute last minute she could stay.

Were these two discussing color palettes for the living room? Enjoying a conjugal visit???