▁come ▁by ▁means ▁of ▁a ▁sur rog ate . ▁At ▁the ▁beginning ▁of ▁Season ▁ 1 1 , ▁Call ie ▁and ▁Arizona ▁decide ▁to ▁have ▁a ▁baby ▁by ▁sur rog ate ▁and ▁Arizona ▁applies ▁for ▁a ▁f etal ▁surg ery ▁fellow ship ▁with ▁Dr . ▁H erman . ▁Arizona , ▁with ▁a ▁heavy ▁work load ▁because ▁of ▁the ▁fellow ship , ▁and ▁Call ie ▁have ▁an ▁argument ▁in ▁the ▁waiting ▁room , ▁and ▁they ▁choose ▁to ▁go ▁to ▁ther apy ▁together , ▁resulting ▁in ▁a ▁ 3 0 - day ▁break . ▁Arizona ▁bel ieves ▁that ▁the ▁break ▁strength ened ▁their ▁relationship ▁and ▁made ▁her ▁realize ▁that ▁she ▁needs ▁Call ie ▁- ▁Call ie ▁on ▁the ▁other ▁hand ▁decl ares ▁that ▁the ▁break ▁gave ▁her ▁a ▁taste ▁of ▁the ▁freedom ▁that ▁she ▁has ▁been ▁missing . ▁Call ie ▁wal ks ▁away ▁and ▁the ▁two ▁get ▁a ▁divor ce ▁later . ▁ ▁Call ie ▁wants ▁to ▁take ▁Sof ia ▁and ▁move ▁to ▁New ▁York ▁with ▁Pen ny ▁but ▁Arizona ▁does ▁not ▁want ▁to ▁be ▁separated ▁from ▁her ▁daughter ▁so ▁she ▁h ires ▁a ▁lawyer ▁and ▁they ▁go ▁to ▁court ▁for ▁a ▁cust ody ▁battle . ▁After ▁a ▁long ▁case , ▁Arizona ▁wins ▁sole ▁cust ody ▁of ▁Sof ia , ▁but ▁in ▁the ▁end ▁she ▁ends ▁up ▁sharing ▁Sof ia ▁with ▁Call ie ▁because ▁she ▁thinks ▁that ▁' both ▁of ▁Sof ia ' s ▁m oms ▁des erve ▁to ▁be ▁happy '. ▁ ▁Call ie ▁is ▁referenced ▁occasionally ▁by ▁Arizona ▁and ▁Sof ia ▁after ▁her