Another Hollywood marriage came to an end this week. Even though most Hollywood marriages struggle to make it to five years it is always a bit of a shock when another couple announce the reality of their unhappiness together. It all looked so perfect. And perhaps therein lies the problem – perfection and the lack of it. It is possible that, before tying the knot, Tom sat down with Katie and said something like, “Katie, I’m not perfect; I’m going to make mistakes, but I will always love you.” This sounds reasonable. Most people don’t think their partners are perfect; they know that they will not love perfectly. Yet people get married…