Callie takes Sofia to live with Meredith and Derek, Zola, and baby Bailey for a while before kicking Arizona out of their apartment and celebrates by dancing in her underwear. Callie also left Arizona at therapy, telling her that she was the only one that needed to go. After being hit by a lawsuit, her father, Carlos, visits and tells Callie that he cheated on her mother but she took him back and Callie wouldn't be here if her mother didn't give Carlos a second chance. Callie goes to Arizona's apartment and invites her to come back home. Callie finds out during surgery that Arizona was sleeping with Leah, a second year resident, while separated. Although angry at Arizona, Callie still agrees to work things out.