"...and who're you to tell me that?"
Cas: Yeah, about that...I know he doesn't know what's going on, but...his grandma's dead, and he doesn't have any other family from what he's told me...so at this moment and time, I'm the closest thing to a caretaker he has...
"Mhm...does he like you?"
Cas: I...I don't know...
"Pft-"
Cas: What?
"You don't know!"
Cas: Yeah, alright asshole...look I-he-I don't know how to tell him that...that his grandma is...
"Sleepin with the fishes~"
Cas: Yeah, exactly.