Upon Erma's death, Jeannette shows irritation in what way?

Jeannette is irritated by the fact that her father doesn't seem relieved.

I was sitting next to Dad. It was the first time in my life I'd ever seen him wearing a necktie, which he always called a noose. His face was tight and closed, but I could tell he was distraught. More distraught than I'd ever seen him, which surprised me, because Erma had seemed to have some sort of an evil hold over Dad, and I thought he'd be relieved to be free of it.