My fiance went to the prenatal checkup with someone else

One week before the wedding, Xena finds her fiancé Ethan accompanying his pregnant mistress to prenatal checkups. She never breaks down—she calls his parents to the hospital, rewrites the wedding ceremony, and exposes his betrayal in front of all guests. She takes back every penny of the renovation fee, ruins his career, and walks away to build a brighter life all on her own.