Tristan Thompson, 30, posted a sweet birthday tribute for Khloe Kardashian, 37. Despite their recent reported split, the Boston Celtics star called Khloe an “amazing partner” in his Instagram post, shared on Sunday, June 27. “Happy birthday @khloekardashian. Thank you for being not just an amazing partner, mommy and best friend but also being the kindest, caring and most loving human being I’ve ever met,” he began, referencing their sweet 3-year-old daughter True.