United Kingdom, Aug. 21 -- Kylie Jenner and Timothee Chalamet "adore each other".

The 28-year-old make-up mogul has been dating the Hollywood actor for two years, and they're both making the effort to keep their romance alive, in spite of their career demands.

A source told Us Weekly: "They are very much together and don't need to be in person together every day for it to work.

"They adore each other and really make it work even with two busy schedules and sometimes not even being in the same time zone."

Kylie celebrated her 28th birthday on August 10, and although Timothee wasn't able to be with her in person, he still managed to make it a memorable occasion.

The insider explained: "Timothee went out of his way to make her feel spec...