The 17-year-old threw a tantrum on the Greek island of Mykonos this spring while on holiday with her famous family.
The teen broke down in tears because she did not feel apart of the group activities and locked herself in her bedroom.
Tantrum: Kendall Jenner turned on the tears during her family's holiday to Greece because she felt she wasn't being included in group activities
Peace-maker: Elder half sister Khloe tried to see what was wrong with Kendall
But elder half-sister Khloe says: 'Kendall is not at breakfast. Last night she said she felt left behind, and I would never want Kendall to think we didn't want to hang out with her.'
And when she attempts to broker a peace deal she is not met with a friendly reaction from the young model as she enters her bedroom.