Towards the end of the ep, I had a horrible idea and I'm really hoping it's just an overactive imagination.
I've always been in the not really trusting Ruby camp. She's a demon. Demons lie. We've heard that several times over the course of the show. Ruby has her own angle she's playing and my horrible thought is what that might be - the 66 seals are almost all broken. Lucifer is almost guaranteed to walk free. Demons need a body to possess in this world.
Ruby's been setting Sam up to become Lucifer's meat suit.
Someone please tell me I'm crazy. Please.