She had time to take a fresh survey of her wretchedness, and to fluctuate anew between the impulse to confide in Selden and the dread of destroying his illusions.
It certainly simplified life to view it as a perpetual adjustment, a play of party politics, in which every concession had its recognized equivalent: Lily’s tired mind was fascinated by this escape from fluctuating ethical estimates into a region of concrete weights and measures.
There are no more uses of "fluctuate" in the book.
Show samples from other sources
Cattle markets tend to fluctuate a lot, and some years, you don’t make much of anything.
Nicholas Sparks -- The Longest Ride
My courage and my resolution is firm; but my hopes fluctuate, and my spirits are often depressed.