"Kendall's always had this rule, which she felt like she had to be with someone for at least a year before she lets them be a part of the show and in the show," Farnaz said. "Because she doesn't always know what people's intentions are. So that's why we kind of kept her personal life out of it, just because she had a rule."
At the end of KUWTK, her sister Kylie participated a bit more, sharing her relationship with rapper Tyga, but later with Travis Scott (the father of her child), Farnaz said that he "didn't really want to participate."
"I feel like Kylie became more participatory this last season towards the end, and Kendall has dipped in and out," she continued. "But they were at an age...like, if you think about when you're a young adult coming into your adulthood, I think you sometimes care a lot more what the outside world has to say about you."
Now that Kendall and Booker have officially celebrated their first anniversary together, the model's rule would no longer apply, but — will you look at that — the show conveniently ended just shy of their milestone. Kris always got the credit for being the mastermind of the house, but it seems Kendall has caught on quickly.