Why must it be so complex?

Why must it be what it is? Life is complex beyond imaging. I don't think this gets better with age either. If I live to be 90 I think my biggest gain will be better acceptance for how it is as opposed to greater understanding of the why. And this bugs me to no end. I'm OCD, I'm a problem solver, I like to know how/why it works. Give me something I cannot answer, even if it has no bearing on me and I seek the answer out, I figure it out, I fix it. Not everything is so simple though is it?

Boy meets girl. Girl likes boy, boy likes girl. Nothing else comes to pass. Or they hook up and secretly hate eachother in 5 months. Boy cheats on girl. Girl loses trust without reason. People flee from what they have because it's so complex. But why is it so? If you get past the 2 big needs of a relationship shouldn't the rest be simple sacrifice? And small sacrifice at that. You like them, and they like you. You don't like the way their knees crack when they walk, accept it. They don't like the way you chew your food, accept it. Your views on life are different. Thats a good thing isn't it? What great sharing of life comes if you have someone exactly like you across the table from you at every turn? How long can you hold a conversation with yourself before your friends start to worry?

Confused yet? I am. This is just what I see in life all around. I see two people I know well who are great for eachother. They match where they should, they mismatch where it will keep life interesting and progressing, but never hook up. I see 2 people who do hook up but one doesn't fit in the others life, and the other doesn't have the will to speak up. Voiced oppinions and wants in the relationship go unheard, misery ensues, but they remain together. Can anyone make sence of such things? Seriously?

And then the broken. The ones who got into something that felt good and seemed good from the point of view they allowed themselves to take, and they become spiteful, hateful. They can blame an entire sex for choices they made when in the end it comes down to being the wrongs of one of two people, if not both. And I've been there, I know the spite, the almost hate of reality because I couldn't admit to myself that even though I thought it was right until it was wrong, I had missed something. They liked something I couldn't handle, didn't enjoy and couldn't accept. Their views on life were so different that they blurred mine until I could recognize myself with them. There was more seen by me then actually existed. Love doesn't over come all, some are simply not meant to be. This isn't fault, this is life. One guy or girl being wrong for you doesn't equal a bad sex, it equals bad choices. One person deceived you, you deceived one person. Issues were ignored that will come back later, or someone lied, but only one someone. You pickup, you heal, you move on and most importantly of all you learn. Life spent in bitterness isn't a life to be had. And a life spent regretting the past will leave you to wallow in your own misery with, at best, the comfort of believing you never did anything wrong.