Grey's Anatomy Season 6 Episode 8 Invest In Love ( Air Date 2009-11-05 ) Genre Drama category. Overview "A generous 25 million donation is offered to Seattle Grace by the parents of Arizonas 10-year-old patient, she finds herself in a conflict of interest when his condition worsens. Cristina tests her boundaries with Owen at the hospital. Alex is left with all of Izzies hospital bills to contend with.".