Dean: You are just a ghost of the girl once I met,
Katherine: I am here, this is me… you like it or not
Dean: Don’t tease me, I will kill you without think
Katherine: Oh really? I would love to see that
Katherine: you could’ve killed me once
Katherine: You didn’t… why?
Dean: ‘cause I might need your help
Dean: Why you have be like this? why you have to kill without care who?
Katherine: Because is the only way to survive
Dean: Do you care at all?
Katherine: Once I did, and that killed me…