Tristan Thompson took to social media on ex Khloé Kardashian’s 40th birthday to pen a heartfelt tribute to the mother-of-two for her important roles in his life. “Happy birthday, Khloe,” the NBA star’s Instagram story read. “You are the best mom. You are my best friend. And the most incredible human being I’ve ever met.” As OK! previously reported, the basketball player and The Kardashians star dated on and off between 2016 and 2021 and share daughter True, 6, and son Tatum, 1.5. During that time, their relationship was rocked by several cheating scandals, ultimately leading to the Good Americ…
