Rapper Kanye West 'frustrated' with wife Kim Kardashian

Rapper Kanye West's bitter feud with rapper Jay Z reportedly stemmed from his "frustration" that his wife Kim Kardashian is not close friends with Jay Zs wife Beyonce Knowles. According to a source, West was "forcing" his wife to be friends with Jay Z and Beyonce so they could have a better relationship, but Beyonce had little in common with her, reports pagesix.com. IN PICS: POP DIVA Beyonce Knowles FLAUNTS her HUGE BABY BUMP like a BOSS! This comes amid claims that West's furious rant onstage nine months ago caused the fall-out with Jay Z. "(Kanye's) rant was really about Kim and Beyonce not being best friends. Kanye is frustrated that his wife does not have a better relationship with Beyonce," the source said. WHAT! Kim Kardashian, husband Kanye West hire surrogate for THIRD child! The source added that West wanted to put "pressure" on Jay Z to get their wives to be friends. "Beyonce is a Southern, God-fearing woman, despite what you may see when she's entertaining. She may not have much in common with Kim," the source added.