Sam was tricked and manipulated by Ruby, even though you warned him several times. He preferred a demon over you and now he was at your door, asking for help. His puppy eyes seemed sadder, his expression tired and completely regretful.

"We need to talk, please let me talk to you." He begs.

Sam wanted to apologize, he wanted to say how stupid it was. It would be pathetic, so he would just ask for your help in dealing with what was to come with the apocalypse brought about by him.