It was a family affair!

Ben Affleck celebrated his 44th birthday by taking a vacation to Montana with Jennifer Garner and their three kids, Us Weekly reports.

The clan stayed at the super luxurious Yellowstone Club, and spent the trip just enjoying the downtime and relaxing. "There was a cake and they did the usual stuff: hiking and playing outside. They wanted to be together as a family,” a source dished to the mag.

So is this yet another sign the divorce is off for the couple? Not so fast...

Although they "got along great" throughout the weekend, they kept their distance when it came to sleeping arrangements. "They didn’t sleep in the same room. And they are not getting back together," the source added.

Being friendly exes is all the rage lately!