<P> After declining a fellowship in Pediatrics, Bailey starts as an Attending in General Surgery . Bailey is so deeply saddened by the news of George's death and Izzie's near - death that she realizes that she is caring about them like her own children . She begins a relationship with the anesthesiologist from Mercy West, Ben Warren . A gunman enters the hospital, believing that the staff had failed his wife . He shoots several people, including resident Charles Percy, whom Bailey is unable to save because the elevators are shut down during the crisis and she can't get him to an OR . She grows close with a patient, Mary Portman, when she fights to save Charles' life . Charles dies in Miranda's lap . As Miranda comforts him, Charles says, "You (Bailey) were always my favorite, I thought you should know". </P> <P> Distraught by these experiences, Bailey takes time off to visit her parents with her son . On her return, she breaks up with Ben . Mary Portman returns for her surgery, which appears to go well, but she does not wake up . They cannot discover what caused her death . Miranda starts on a quest to cure fistulas and encounters a nurse, Eli, whom she starts dating . </P> <P> Bailey is offended when Meredith violates the rules of the Alzheimer's clinical trial in order to help the Chief's wife . She berates Meredith; the Chief resigns as head of surgery because of Meredith's action . Bailey resumes control of Ellis Grey's Diabetes trial, and Webber pushes her to forgive Meredith and choose her as staff for the trial . Bailey forgives Meredith . She breaks off her relationship with Eli, not wanting to pursue it further, and renews her relationships with Ben the anesthesiologist . She eventually moves in with him, but he gains a surgical internship in California . </P> <P> They become engaged nonetheless, and new interns at SGMW refer to her as BCB ("Booty Call Bailey"): whenever Ben is in town she is giddy and has sex with him as much as possible . On the way to her wedding, Bailey is pulled in to perform surgery on Richard's wife, Adele . After saving Adele, she returns to the venue and marries Ben . She launches a genome mapping program, and Meredith is the first one to test it . An investigation of Bailey takes place after three of her patients contracted an infection and died . It concludes that Bailey transmitted the infection via permeable gloves, a new brand that the hospital started using . </P>

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