Desertion

n.
  1. The act of deserting or forsaking; abandonment of a service, a cause, a party, a friend, or any post of duty; the quitting of one's duties willfully and without right; esp., an absconding from military or naval service.
  2. The state of being forsaken; desolation; as, the king in his desertion.
  3. Abandonment by God; spiritual despondency.