Interfaith marriage, traditionally called "mixed marriage", is marriage between spouses professing different religions.
Since these are generally peculiar to Mormons, it can be hard for two young people to reconcile these differences.
Interfaith dating is not prohibited but there is a slight caveat that goes with this.
Generally, interfaith relationships are discouraged by many religious groups based on the inherent differences in such fundamental beliefs.
This depends on religious prohibitions against the marriage by the religion of one (or both) spouses, based on religious doctrine or tradition.
In an interfaith marriage, each partner typically adheres to their own religion; this excludes a marriage of a spouse belonging to religion X to a spouse who has undergone religious conversion from religion Y to religion X.