We got a hint of this drama in a previous promo, but now it's right in our faces.
Kylie Jenner bringing her BF Tyga along definitely kinda sorta RUINED the Kardashian family vacation in St. Barths.
Related: Kylie Drops A Bombshell On Leaving The Spotlight!
In Sunday's Keeping Up With The Kardashians, Kendall complains to big sis Khloe just how annoying Kylie is being with her beau — when she should be spending time with her fam!
Ch-ch-check out the growing rift starting to spread (above)!
KUWTK airs on Sunday at 9 p.m. EST on E!
Tags: family, kendall jenner, khloe kardashian, kuwtk, kylie jenner, love line, reality tv, tv news, tyga