It goes without saying that we should all fall in love with someone who treasures our presence rather than takes advantage of it. Someone who will covet our heart, not trample on it. Someone who will not exercise the power you've given them to hurt you. Ah, easier said than done, right? In a perfect world, every relationship would last a lifetime. No one would experience relationship blues of any sort. And the divorce rate would certainly not be in the neighborhood of 50 percent. The truth is that relationships take serious work -- a lot more than some couples are willing to put in. When you first meet and get with someone, you have your blinders on. They seem perfect to you in every way. You picture yourself walking down the aisle, having kids, and living a blissful life together. Then, reality sets in. You have arguments about matters both petty and serious. You can't seem to agree on anything, whether it's what to eat or where to vacation next. You encounter fi...