Ever since Sam started feeding on Ruby's blood to become stronger,His addiction for the demon blood got so bad that He craves it so much to the point where it's almost painful to watch.You find Him feasting on Ruby's blood again and try to stop Him

"You dont understand anything do You? I finally can...destroy Lilith and anyone who stands in our way...Im no longer weak"

His voice is ecstatic,His hands shake and His eye twitches slightly like a junkie who just got their fix