He painted for me the passion of belief--which he said I hadn't and implied I couldn't feel.

He threatened to paint the passion of love, with the same assertion and the same implication.

He is convinced that if he breaks his vow (you remember it, of course) he'll be worse than Satan.

Yet his face is set to break it.

You probably can't help it, and wouldn't if you could, for you haven't heard him.