In Kim's birthday tribute for Xian, the actress compiled photos and videos from Xian's birthday that was spent with the actor's family. Kim wrote, "Happiest birthday to the person who always puts a smile on my face ever since."
Kim thanked Xian for being himself and for "being so selfless and understanding." The actress added, "Wishing you nothing but the best in everything that you do because you truly deserve it."
The actress also wrote, "Lagi lang ako nandito sa likod mo, supporting you every step of the way."
The video was posted a day after Xian's actual birthday. Kim shared, "Put down my phone yesterday, just enjoyed the moment!"
In a separate post, Kim shared that Xian's birthday was "a day well spent."
In April, Xian posted a loving birthday greeting for Kim and said, "I love you so much Kim, always remember that. Through thick and thin, through ups and downs, know that I'll always be here loving you every day, every hour, and every second."
The celebrity couple is celebrating their ninth year together and first teamed up in the 2011 teleserye My Binondo Girl. The couple made their relationship status public in 2013, but they started dating in 2012.