Why do we believe?

Some people believe in family, others believe in friends, in some kind of god..
And then their are those who believe in love..
I was one of them, or am one of them, not really sure about that yet.
I didn't have the best example for relationships, I've seen my share of bad break-up's..
Spite of that, I believed. I believed everyone, including me, would find their love, grow old together, have pretty children and make an effort everyday to make it work. (Silly huh?) Now the only thing I see is couples fighting, couples rushing into living together or couples breaking-up after years of being their for each other.
How come we can go from love to hate in one day?
Realising this, makes me wonder why we still believe. Why are we so foolish? Why am I?
I lost my faith somewhere along the way. I even can't be honest about my feelings to my friends. The girl who once loved to hug and kiss her friends has died I guess..
I've been deceived, heartbroken and messed up. Maybe the last time was just too much?
He left and took a part of my believe with him.

27 days ago I was dreaming of my prince..
Today I'm sitting here, wondering if believing is still worth it.