the person you are going to marry is called
Engagement An engagement, betrothal, or fiancer is a promise to wed, and also the period of time between a marriage proposal and a marriage. During this period, a couple is said to be betrothed, intended, affianced, engaged to be married, or simply engaged. Future brides and grooms may be called the betrothed, a wife-to-be or husband-to-be, fiancée or fiancé (from the French word of the same form), respectively. The duration of the courtship varies vastly, and is largely dependent on cultural norms or upon the agreement of the parties involved.
90 Day Fiancé 90 Day Fiancé is an American documentary series on TLC that follows couples who have applied for or received a K-1 visa (available uniquely to foreign fiancés of American citizens) and therefore have 90 days to decide to marry before the visas of the foreign half of the couple expire and they must leave the United States. It debuted on January 12, 2014.[2]