Jennifer Lopez & Marc Anthony Declare a Truce

Since announcing the end of their seven-year marriage a year ago, it hasn't exactly been a stress-free split for Jennifer Lopez and Marc Anthony.

OK! NEWS: IT'S OFFICIAL. JENNIFER LOPEZ CONFIRMS SHE'S LEAVING AMERICAN IDOL

But an amicable hug between Marc and J.Lo's 25-year-old beau, Casper Smart, proved that much of the tension has dissipated.

"It wasn't a warm bear hug," an insider tells OK! of their interaction at a private New York airport on July 3. "In fact, it was pretty much of an awkward kind of backslap in greeting, but it's a start."

OK! NEWS: AMERICAN IDOL CONTESTANTS WEIGH ON JENNIFER LOPEZ'S RUMORED DEPARTURE FROM THE SHOW

And it was definitely better than nothing, as J.Lo, 42, feared that Marc, 43, and Casper would never get along. "At first, Marc refused to even be in the same room as Casper because he was still hell-bent on getting Jennifer back and furious that she was publicly carrying on with this young kid," says the insider. "He was always tearing into her about how she dressed and how she was emarrassing their family."