You just can't tell at the outset of a relationship how it's going to go. You can feel "sure," but what does that really mean?
Jill Andres and Brook Silva-Braga decided that if their bond was a good one, it could take some testing. So they proceeded to run themselves and each other through a series of trials, all recounted in their book The Marriage Test: Our 40 Dates Before "I Do." Listen to this archived interview for hints that might work in your own relationship.