I pointed this out in another thread, but I had looked up why government got involved in marriage to begin with, and the reason was to prevent young people from running off and eloping without their parents' consent. 

This means, that to get right with God, she either needs to get back together with her first husband, or live without a man at all.
Also, the second option is only available to her if her first husband won't take her back. 

Shiloh isn't haunted - men are haunted.  Shiloh doesn't care.