What "project" caused Mrs.Clutter despair and why? How was she unlike her husband?

Mrs. Clutter had to organize thanksgiving for more than twnty guests. On top of that she had to worry about Beverly's wedding. This really stresses her out. Unlike her husband, who is pragmatic and stoic, Bonnie is a slight, nervous, apologetic woman who suffers from chronic postpartum depression, which leaves her bedridden on many days.