Model Amber Rose reportedly is not happy that Khloe Kardashian and NBA star James Harden have been seeing each other. The pair worked up a sweat together Thursday when they dropped by Cycle House in West Hollywood. The rumored couple then went on a dinner date after their workout.

According to the Mirror, Rose isn’t pleased that another Kardashian sister is cozying up to one of her former flames. In February she revealed that she and Harden had a special friendship. They apparently didn’t end up staying together and now the Houston Rockets star is hanging out with Khloe. Some may recall that Kanye West dated Rose before he dated and married Khloe's sister, Kim Kardashian West.

The feud between Rose and the Kardashian family has a long history. She and Khloe got into a heated Twitter exchange after Rose blasted 18-year-old Kylie Jenner’s relationship with rapper Tyga, 25. Rose is close friends with Blac Chyna, Tyga’s ex and mother of his child.

Meanwhile, Khloe appears to be ignoring Rose. She happily shared a photo from her cycle session with Harden and the newest members of the E! family. She welcomed Aaron and Nichelle Hines, who will be starring in the upcoming E! series titled “Hollyood Cycle.”

The foursome was photographed sitting together inside the cycling studio. Khloe wrote: “Post class pic with the newest members of the E! family. Welcome to family guys! Thanks for kicking my a-- tonight!!! Catch@HollywoodCycle Tuesday nights at 10pm! @ahines83  @spingalnichelle @jharden13.”

Khloe and Harden first sparked romance rumors when they celebrated the Fourth of July in Las Vegas together. They went out for a dinner date, then watched a Chris Brown performance. They reportedly met when Harden attended Kanye West’s basketball-themed birthday party in Los Angeles last month.