The difference between a Relationship set for success vs. one that's destined for failure is a number of things, not just a single factor. But the good news is that signs of a healthy partnership are often interlinked with another, so if you have one of the characteristics, you're probably in good standing for the remaining areas. For example, good communication leads to trust and so forth. It creates an amazing snowball effect that can ultimately result in a relationship that will last through thick and thin. To find out how you and your partner can make it through the long haul, see nine Reasons Relationships Succeed ahead.