In Season 11 , Owen develops a relationship with Amelia Shepherd . This is off and on throughout Season 11 and 12 until the end of Season 12 where he and Amelia get married . In Season 14 , after going through a series of marital issues , Owen and Amelia decide to get divorced . Despite this , they continue sleeping together until she points out that he 's always been in love with Teddy . As a result , he flies to Germany to be with Teddy , but , after they spend the night together , she breaks it off with him because she does n't believe he really wants her . Owen returns to Grey Sloan and begins fostering Leo , a baby who was given up by his teenage mother . When Amelia finds Leo 's mother , Betty , homeless and addicted to drugs , Amelia takes Betty in , and , together , Owen and Amelia take care of Leo and Betty at Owen 's home . In Season 15 , Owen officially adopts Leo as his son and welcomed his newborn daughter Allison with Teddy , whom they named after Teddy 's best friend Allison , who died during the collapse of the second tower on September 11 , 2001
collapse of the second tower
September 11 attacks
Owen Hunt