Revenge Cake gave me a lot of the same vibes of Normal People by Sally Rooney, but although I have found many similarities between Marianne and Leilani there are also a lot of differences, with the most important being that Marianne swipes through life apparently unfeeling, while Leilani is in fact terribly afraid of living and, most importantly, of failure. She is a control freak because of her anxiety, and when things escape from her tight grip, she spirals down. Hard.
