Optimistic Castiel

"Why are you so negative Cas? We are gonna find a way. Dean likes you, he's a just little bit too stubborn." Sam tried to reasoning with the angel.
"That really changed everything Sam, I'm becoming pure optimistic at this exact moment." Sam just sight. "Can you at least turn down the sarcastic little bit? That doesn't help us here. We just have to find a way how to make Dean confess his feelings to you."
Cas just frowned. "Good luck with that, because my death didn't help, his death didn't help, I really don't see a way here Sam."