Kylie Jenner is likely used to being the center of attention, as she boasts more Instagram followers than anyone else in the Kardashian-Jenner family, including older sister Kim Kardashian. Lately, though,

A source tells PEOPLE that Kylie Jenner "wants to be by" her boyfriend Timothée Chalamet's "side for it all" as awards season begins and he continues celebrating the release of 'A Complete Unknown.' "Kylie is happiest,

Kylie Jenner and Timothée Chalamet’s whirlwind romance took the world by storm when speculations first began to swirl. The internet went wild at the sight of the beauty mogul and

"She knows that his career is so important to him." "She wants to be by his side for it all," the insider continued, adding that Kylie is "really making an effort" to do so. The source also said she's "the happiest" and described her relationship with Timothée as "very serious.

The makeup mogul “has never felt like this about anybody else before and definitely sees a future with him,” the insider says.

There are a few celebrity couples that are so stylish, their relationships are still revered to this day (even though some of them have been broken up for decades). Angelina Jolie and Billy Bob Thorton, Pamela Anderson and Tommy Lee, Hailey and Justin Bieber —the list goes on.

The reality star showed off her curves in a catsuit while the “A Complete Unknown” actor went casual in Chanel.

While Jenner didn’t accompany Chalamet to the A Complete Unknown premiere in Paris, continuing to keep a more or less low profile where they can, the couple shared an intimate date night straight after. They were photographed enjoying dinner at chef Cyril Lignac’s restaurant, before heading back to the elegant Hotel Royal Monceau.