Kristin Cavallari, 34, and ex Jay Cutler, 37, shocked their Instagram followers on Jan. 22 when they both shared a photo of themselves posing together nine months after announcing their divorce, which can be seen below, and now we’re learning the meaning behind the move. “Kristin and Jay will always have each other’s back no matter what and that’s what posting that photo was all about,” a source EXCLUSIVELY told HollywoodLife. They are friends.”