I don’t believe Bill slept with her for 20 years after they left the White House.
The minions at the Clinton Presidential Center in Little Rock told me Bill spends a fair amount of time there w/o Hillary who’s almost never there. He has a private residence on the 4th floor. The public elevators only go to the 3rd floor.
BJ lectures at the Univ of Arkansas “Clinton School of Public Service” (right down the street).