Relationships go down the road to ruin without a willingness on the part of both partners -- not just one -- to do the following six things: Invest time in the relationship Invest energy in the relationship Communicate their concerns and address any areas where they feel there is room for improvement Remain transparent Love and trust one another Be understanding rather than judgmental A relationship is like a car in that it requires routine maintenance. What would happen if you were to stop changing the oil and rotating the tires? It would cease to work properly, right? The same logic applies to a relationship. And here's the thing: When a car starts giving you problems, you don't immediately go out and get a new one. Similarly, you shouldn't pull the plug on a relationship without making the effort to resolve whatever problems the two of you are facing. Ending a relationship prematurely would mean giving up on somethin...