She apparently saw her boss, despite his egomania and narcissism, as the supportive father figure that she lacked in real life.
It takes a certain kind of moxie—and egomania—both of which Roth has always had in spades.
egomania e·go·ma·ni·a (ē'gō-mā'nē-ə, -mān'yə, ěg'ō-)
Extreme appreciation or preoccupation with the self.
An extreme egotism.