Kendall Jennerwas selective about what she wanted to share on her family’s long-running reality show,Keeping Up with the Kardashians— particularly when it came to her romantic life.

“Kendall’s always had this rule — she felt like she had to be with someone for at least a year before she let them be a part of the show, because she doesn’t always know what people’s intentions are,” Farjam said. “So that’s why we kind of kept her personal life out of it, just because she had a rule.”

Ben Gabbe/Getty

Kendall Jenner

Indeed, fans never did get to see any of Kendall’s relationships unfold on screen, and her sisterKylie Jenner, 23, took her own step back from the show in recent years.

“I feel like Kylie became more participatory this last season towards the end, and Kendall has dipped in and out,” Farjam said. “But they were at an age … like, if you think about when you’re a young adult coming into adulthood, I think you sometimes care a lot more what the outside world has to say about you.”

But Kylie “did share her relationship withTyga,” Farjam added. “We showed their relationship quite a bit onKeeping Up, and thenTravis [Scott]didn’t really want to participate.”

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Kendall, who isnotoriously privateabout her dating life, has previously been linked toHarry Styles, Philadelphia 76ers guardBen Simmonsand Brooklyn Nets forwardBlake Griffin. She’s currently dating Phoenix Suns playerDevin Booker, with whom shemade her relationship Instagram officialon Valentine’s Day this year.

Kendall and Booker, 24,celebrated their one-year anniversaryon Sunday, each posting sweet photos together on Instagram.

Kendall Jenner and Devin Booker.Kendall Jenner/Instagram

Kendall Jenner and Devin Booker

“This is thehappiest Kendall has ever beenin a relationship,” a source told PEOPLE in April. “She and Devin started out slowly, but have dated for about a year now.”

And while Kendall has remained “very private about their relationship,” the insider said it was “obvious that they have something special going on.”

source: people.com