Ruby was clearing Sam a path, off to his side for the moment, slicing into Lilin with her knife, grim determination in her eyes, this was it, this was the start of his destiny and she would do anything she needed to to make sure he lived to see the fulfillment of it.
She had seen the focus in his eyes from the moment the door had been blasted in and this thing had begun, that grim determination to see this through and she had never been prouder of him.
She'd follow him to hell if she had to. Though hopefully it wouldn't come to that.
He was using it, his gifts, his abilities, becoming the thing hell feared he would be. And she was at his side. That was only right considering.
Azazel may have started him on the path for his own intentions, but Ruby was ready and able to keep him on it, for better intentions.
Starting with the death of the Queen Bitch herself.