Who knew they were such good friends?

Kris Jenner is currently on a girls' vacation in Mexico with pal Melanie Griffith and her daughter Dakota Johnson, and the momager doesn't look like distraught woman going through a breakup, even though it's been reported that she called it quits with her boy toy Corey Gamble.

"Kris was using him for someone to hold and she was using him for sex. He gave her what she needed for that moment in time. When Kris started to hear the reports in the media from Corey’s ex-girlfriends, she really started to lose interest and see him as a liability," a source dished to Radar.

"Kris is an opportunist and she has traded up men her whole entire life. She is always looking for something bigger and better," the source added.

It certainly didn't look like the couple was dunzo when we caught Corey fueling up his much older lady love's Bentley in L.A. just yesterday!