Storylines
Callie Torres is introduced as an orthopedic surgeon with a crush on intern George O'Malley (T.R. Knight). The two start a relationship and Torres moves into his house. Uneased at the way their relationship is progressing, O'Malley confronts her, which results in her moving into a hotel. In the aftermath of the breakup, she meets and has a one-night-stand with plastic surgeon Mark Sloan (Eric Dane), who becomes her friend. Torres and O'Malley subsequently reconcile, and the two marry in Las Vegas on the spur of the moment. Confused, O'Malley confides to fellow intern Izzie Stevens (Katherine Heigl), about his relationship woes over alcohol, leading to a drunken sexual encounter between the two. Torres remains unaware of his sexual encounter, becomes increasingly suspicious, and announces her desire to conceive a child. Shortly thereafter, however, she discovers that O'Malley has been unfaithful, ending their marriage. Though her personal life is troubled, Torres thrives professionally when she is appointed as the hospital's Chief Resident. However, she soon begins struggling to cope in the role, and is demoted soon thereafter.
Torres forms a friendship with Erica Hahn (Brooke Smith), the hospital's new chief of cardiothoracic surgery. The two embark on a relationship, although neither has been with another woman before. Torres struggles with her bisexuality, and cheats on her with Sloan. She is initially forgiven, but after an argument about work, Hahn resigns from Seattle Grace, ending their relationship. New pediatric surgeon Arizona Robbins (Jessica Capshaw) kisses her, and they begin dating. Their relationship is tested when Torres comes out to her father, Carlos, who disowns her, cutting her off both financially and emotionally. When she is not granted a position as an attending, she publicly berates the chief, Richard Webber (James Pickens, Jr.), and resigns from her post. She begins working at the neighboring Mercy West hospital, and when the two hospitals merge, she is promoted to an attending surgeon. Torres' father returns yet again, to condemn her, but ultimately accepts her sexuality. When Torres explains her desire to bear children, Robbins expresses disappointment, and their differing stances on the matter lead them to break up. Soon thereafter, a gunman commits mass murder at the hospital, and relieved to have survived, Torres and Robbins reconcile, with Robbins agreeing that they should have children together.
When Robbins wins a prestigious grant to help treat children in Malawi, a disgruntled Torres agrees to move there with her, as the position will last for three years; however, her lack of enthusiasm causes Robbins to end their relationship and go without her. A heartbroken Torres moves in with Sloan, and they have a one-night stand. Robbins returns for Torres, apologizing and hoping for forgiveness, but Torres initially rebuffs her, and later reveals that she is pregnant with Sloan's baby. Robbins agrees to raise the child with her, but dislikes that Sloan will be a permanent part of their lives. En route a weekend getaway, Robbins proposes to Torres, soon before the two engage in a head-on collision with a truck, leaving Torres severely injured. In an attempt to save her life, obstetrician-gynecologist Addison Montgomery (Kate Walsh), delivers Torres' premature baby. Torres survives, and agrees to marry Robbins. After twelve weeks of recovery, both Torres and baby Sofia are discharged and allowed to leave the hospital. Torres recovers from her surgery, but deals with the backlash from her mother (Gina Gallego)'s attitude toward the wedding and her granddaughter. Torres and Robbins marry in a garden after the minister's wife falls ill, with general surgeon Miranda Bailey (Chandra Wilson), officiating the ceremony.
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