The 26-year-old Houston Rockets shooting guard had been dating Khloe since July, before their relationship "took a back seat" following Lamar's medical crisis. Just hours after Khloe's lawyer, Laura Wasser, filed to have Khloe and Lamar's divorce filing withdrawn on Wednesday, James Instagrammed a video of him seemingly in good spirits, rapping to the Future and Drake track, "Jersey."
"You do what you want when you poppin,'" James raps in the car. "You do what you want when you got it."
Of course, his primary focus remains on basketball.
"7 days until the cook is back to work! #HTown," he also Instagrammed on Wednesday, alongside a picture of himself on the court.
A source told ET on Tuesday that Khloe and James' relationship had been put on hold following Lamar's hospitalization. "Khloe is really focusing on getting Lamar better and he is her number one priority right now," the source said.
Presumably, it's off for good, now that Khloe and Lamar are giving their marriage another try.
Though, prior to Lamar's medical crisis last week, James and Khloe appeared to be getting more serious. In August, she threw him a lavish all-white yacht party in Marina del Rey, California, for his 26th birthday. Almost the entire Kardashian-Jenner clan attended -- including Kim, Kendall, Kylie, Kris, and even Kanye West -- showing that the famous family was supportive of the relationship.
A source told ET that James was actually the first guy Khloe "really liked" after splitting from Lamar in December 2013.
"Khloe never loved [her ex] French Montana. He was a rebound and someone she had a good time with," the source said. "The first guy she really liked after Lamar was James Harden."
"I know Lamar did wrong by Khloe, but at heart, he's a good guy and he never meant to hurt her," Harrick, who has known Lamar since he was 14 years old, said. "Lamar felt like the Kardashians were the first real family he had ever had, and they completed his circle of life."