Rustic Chivalry (Cavalleria Rusticana)

This book by Giovanni Verga is a French opera melodrama in one act by Pietro Mascagni. This book is centered around a man who discovers his fiancé has married a wealthy wine carter. In retaliation, he went on to romance another lady making his ex-fiancé jealous. What will happen next? Will he take her back or falls in true love again?