The head of the PA should not be treated as a head of state, he should be treated as a mayor.
His window to the outside world should be Amman. Israel should not hold any direct talks with him at all. Does a head of state negotiate with a mayor?
If PA wants to communicate with the Israeli government, they should direct their communications through the Jordanians and Israel should reply through the Jordanians.
The arab west bank will never be an independent country, and we should all stop pretending that it will be.