The most bizarre thing about this story to the extent it is true, is that it seems to imply the meeting was at the behest of the Vatican. Apparently Pope Francis is not only opposed to SSM, but also if he meant to lend his support to Davis' actions, is willing to abandon the rule of law when it comes to government officials obeying it to the extent necessary for the government to perform its duties, in this case issue marriage licenses to SS couples. Very disappointing.
His statements on immigration should be enough of a tip off that rule of is not his necessarily his first concern when it comes to politics.
What he told Kim Davis we don't know beyond her account. The Vatican has tried to keep this on the dl. The Pope has spoken forcefully in support of an expansive definition of religious liberty, but he is first and foremost a minister, not a lawyer.