Sigh, they're not going to get married, they're in their early 20's? Both under 22? Still kids, and as inconsistent with their convictions as all kids are, they'll be in another place in just a few months. Right now, they're drunk with passion and are swept away with the romantic "idea" of it, the reality on the other hand, will scare the bejeebus out of them and they will bail, I can almost guarantee it! How do I know? Decades of experience, some of it personal.