Audrey chose Nathan always. I bet the troubles started because Audrey chose him over William. She goes back to the barn after sacrificing her love, Nathan and William stops the troubles because she comes back to him.
@aja haha I noticed her shoes when she was following Henry too!
Several posters have commented on Nathan saying he is with Jordan. The timeline was already messed up at this point. He was a different version of Nathan. Maybe this explains his behavior.
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