Dean: There's no use asking why me? 'Cause the Angels...
Dean: They don't care.
Dean: I think maybe they just don't have the equipment... to care.
Dean: Seems like when they try, it just...
Dean: Breaks them apart.
Castiel: Dean!
Castiel: I miss him.
Castiel: Why would he just disappear?
Dean: Hey!
Castiel: Dean... He-
Dean: I get it.
Dean: But you got to chill.
Castiel: I think you'll be, great teachers.
Dean: Thanks, Cas.
Dean: There's a right and there is a wrong here, and you know it.
Dean: Look at me! You know it!
Dean: This is Cas, guys.
Dean: I mean, when there was no one...
Dean: And we were stuck - and I mean really stuck -
Dean: he broke ranks.
Dean: . He has gone to the mat cut and bleeding for us so many freakin' times.
Dean: This is Cas!
Castiel: Thanks, Dean.
Dean: Cas, Wait...
Dean: I can't let you do this.
Dean: Okay... Okay...
Dean: It's going to be okay buddy, alright?
Castiel: Maybe you could fight the Mark for years. Maybe centuries, like Cain did.
Castiel: But you cannot fight it forever.
Castiel: And when you finally turn,
Castiel: And you will turn.
Castiel: Everyone you know, everyone you love...
Castiel: They could be long dead.
Castiel: Everyone except me.