Why is Love so complicated?

Why is love so complicated? Love is a headache and a heart breaking adventure. Most of the people involved will come from it with deep scars that they can never completely make disappear. And yet, we are always eager to go back and try times and times again. Why is that? Simply because, no matter how hurtful love can be it is still the most fulfilling emotion known to human life. A life without love is a life not fully lived, a complete waste. Then, you would ask what make such a beautiful thing so complicated?

--The story is begin here--

There's two guys out there
whom A and B ,both of them is in different characteristic,
while C Girl is just involving between them,spining around her head
don't even know which the better should her deserved to.. A? B?
Well,such feeling is freaking helluva..T.T

A--Is the guy who love and fully caring to C Girl,he's a 90% perfect caring guy.
The only problem is C Girl doesn't has any feeling towards A guy..

WHILE.....

B--Is the guy who loving by the C Girl but he doesn't make any sense,just only used to be enjoyable in complicated relation with C Girl,a relation that much more closer than a best friend.

SO...?

If you were C Girl,which will you chosen with to predict for your future?
If you were the C Girl,will you persuade a person who loving you more?Happiness of being love by him?
Or may be,will you choose a person who you love him more but he doesn't care about you?

Helpless even irritating with such situation...T.T