It was sweet and funny and self-deprecating, nothing like the infantile behavior she had just displayed.
At one point, Valle offered an apology to anybody who had been “hurt, shocked or offended by my infantile actions.”
It's how we project our own catastrophe of infantile adulthood.
infantile in·fan·tile (ĭn'fən-tīl', -tĭl)
Of or relating to infants or infancy.
Displaying or suggesting a lack of maturity; extremely childish.