Wiktionary
gamophobia
n. The fear of marriage.
Wikipedia
Gamophobia
Gamophobia is the fear of getting married or being in a relationship. Some disciplines have attributed the phenomenon to a more general sense of aversion to an unfamiliar environment. Some analysts have argued that some segments of gamophobia stems from the Enlightenment. Some research suggests that this phobia is especially prominent among the post 1980s and 1990s generation.