I can try to clarify, it’s certainly confusing.
Here goes..
Gay marriage is not legal in PA because of an amendment banning it added to the PA Constitution, but there are challenges and the Pennsylvania Attorney General, Kathleen Kane, does not want to defend the current law, which means the Governor is going to have to with his own lawyers. In Montgomery County, the county officials are in a sense testing the law by allowing gay marriage. But as of now, since the Constitutional amendment does not allow it, it’s going to be a legal battle
So that is the confusing place Pennsylvania stands right now on the subject..