"Thank you for being an amazing mommy to our princess True. She is blessed to have someone like you to look up to. I wish you nothing but more success and sending you positive blessing your way. Enjoy your day Koko."
The reality star split up with Tristan earlier this year after he was caught in a cheating scandal with the Kardashian's long-time family friend Jordyn Woods - Kylie Jenner's best friend.
The drama has since been aired on Keeping Up With the Kardashians, where the NBA player is slammed by Khloe's sisters like Kim Kardashian and Kourtney Kardashian.
The 21-year-old has been cast away from the family since her betrayal became public, but Khloé won't shut Tristan out completely, as they share a daughter True Thompson.
Hopefully, Koko has an amazing birthday without any more reminders of her ex!