Maybe your ex is in the
"know" on a few fronts that dad's don't always get to know - ya know,
the daddy's little girl scenario.

As childish as this possibility is, it is common.....you may not also
be "in the know" on some fronts because your ex may view her sharing
the "issue" with you may represent a failure on her part as a parent
to her in what she perceives you would think.