Kylie Jenner is "really making an effort" to support Timothee Chalamet

A source told PEOPLE: "She enjoys attending the events with him. She knows that his career is so important to him. She wants to be by his side for it all."

The celebrity duo began dating in 2023, and their romance is now said to be "very serious".

Kylie - who has previously dated the likes of Tyga and Travis Scott - is also happier than she's been in a long time.

The insider explained: "Kylie is the happiest.

"They are very serious. Everyone in her family loves him."

Kylie previously insisted that she wants to keep her personal life out of the spotlight.

The brunette beauty explained that in spite of her celebrity status, she actually prefers to spend time at home with her friends and family.

Kylie - who has Stormi, six, and Aire, two, with Travis - told HommeGirls: "I value a lot of personal time.

"So, I usually have people over for dinner, or I go to someone's house, or if we're going out somewhere usually my friends come over and we get ready together."

Kylie acknowledged that she's grown her businesses with the help of her online fanbase. But the Kylie Cosmetics founder wants to strike a "balance" between sharing things with her fans and retaining a healthy degree of privacy.

The 'Keeping Up with the Kardashians' star said: "The internet is amazing because obviously that's where I started my business. It's been great for me to connect with my fans but now I think it's about finding balance. There's a dark side to it. It's just about finding that balance."