Kim Kardashian and Reggie BushReggie Bush and Kim Kardashian may have have split up for the second time.

A source told E! Online that the relationship is over because the Super Bowl winning running back was always uncomfortable in the spotlight that his girlfriend's fame brought. The source added that it was a mutual decision.

However, PEOPLE claims that it's not official yet. "They are trying to decide what to do right now. Reggie has issues with her busy life and schedule and she can't give it all up."