The Cheater's Guide To Love by Junot Diaz

A raw, wry first-person novella that follows a charismatic, self-destructive Dominican-American narrator as he recounts a pattern of serial infidelities and the messy attempts to change; blending dark humor, sexual frankness, and painful self-awareness, the story probes machismo, guilt, longing, and the immigrant-family pressures that shape his relationships, ultimately asking what love demands and what betrayal costs.