He doesn’t want to be under the microscope with her.
He could have given her this advice in private. But he chose to make it public. Is he trying to spike her guns?
“...He doesn’t want to be under the microscope with her....”
THAT, right there. Willie knows his “mattress” will be scrutinized inside and out.
He really would prefer the “mattress” be left “untouched” and out of the limelight because he KNOWS it’s all gonna come out.