The Impossible Lives Of Greta Wells by Andrew Sean Greer

Set against the backdrop of 1980s New York, this novel weaves a mesmerizing tale of love, loss, and self-discovery as the protagonist grapples with the death of her twin brother and the end of a long-term relationship. In a desperate attempt to escape her grief, she undergoes a series of electroconvulsive therapies that unexpectedly transport her into alternate versions of her life in different eras. Each new reality presents its own challenges and revelations, forcing her to confront the choices she has made and the paths not taken, ultimately leading her to a profound understanding of her own identity and the timeless nature of love.