12:14 PM PT -- Turns out the reason Hannah withdrew her petition so quickly was because she apparently filed legal docs in the wrong county, so she refiled the case in a nearby county in the Nashville area ... so now it makes more sense. She didn't file last Friday and suddenly change her mind the same day. Her lawyers filed and then must have realized the jurisdiction was wrong, so they fixed it.
Sam Hunt's wife had an almost instant change of heart after filing for divorce, because the same day she accused Sam of adultery she withdrew her petition to end the marriage.
Hannah Lee Fowler had filed legal docs Friday to end her marriage to Sam, not only citing infidelity but revealing she was pregnant and wanted primary custody of their child due in May. She had also asked for spousal and child support.
But, then she filed a document the very same day saying the divorce petition was "voluntarily nonsuited without prejudices." Translation ... she's withdrawing the divorce case but is reserving the right to file again in the future.