Kylie Jenner and boyfriend Timothée Chalamet are "still very much together and committed" despite the actor's absence at Kris Jenner's 70th birthday bash over the weekend. "Timothée wasn't at Kris' party because he is filming two huge projects right now and is working," a source exclusively tells Us Weekly. "He has been on set for Dune, but he and Kylie FaceTime every day." The insider notes that "it is very serious" between Kylie, 28, and Chalamet, 29, who were first linked in 2023.