Alex Karev is always the most mysterious character. You never know what sides of him are going to come out and when. "Here Comes the Flood," from the fifth season of Grey's Anatomy, should be more of the same.
Cristina: There's no way that guy has been living at an 8. He's a wimp. His 8? My 3. I can take pain. Meredith: You can't talk to my boyfriend for 10 minutes. Cristina: Well there's pain and then there's torture.