Rob Kardashian finally moved on from Blac Chyna. Kardashian, 30, is dating "Basketball Wives LA" star Mehgan James, People magazine reported. James supports Kardashian in all that he does. "She's a good role model in his life," a source told the magazine. The new relationship comes three months after Rob Kardashian and his ex-fiancée Blac Chyna ended their yearlong relationship.