Watch: Katherine Heigl ''Jealous'' of Alex's Relationships on Grey's Tweet January 25, 2012 by Molly Related: Grey's Anatomy, Relationships , Interviews , Justin Chambers , Katherine Heigl , Alex Karev , Izzie Stevens Visit msnbc.com for breaking news, world news, and news about the economy Credit: NBC Katherine Heigl on The Today Show. Original air date: January 24, 2012 Satisfy your Grey’s Anatomy addiction: Like us on Facebook and Follow us on Twitter and Tumblr.
