Why isn't love enough

Hello Blogworld
Why isn't love enough?  It is supposed to be.  As a little girl, I grew up believing that I would someday meet a man and fall in love.  And there would be bumps in the road but if we really loved each other it would all work out okay.  But that isn't true.  I fell in love with Bear.  Head over heels,stuff in fairy tales love with him. I actually planned to move over a thousand miles away to be with him.  Leave my family ad friends, uproot my son and probably would have changed religions for him.  But he backed out. Yes he has practical good reasons. He is even looking out for my best interests.  Yet it doesn't lessen the hurt and pain I feel.  I really love my Bear.  I was happy just spending time with him doing whatever.  I was like a 16 year old in love for the first time.  (I have kids older than 16) I want to feel that again to love again that honestly and openly.  I didn't know I could be like that. And I am terrified I will never feel it again.  I don't want to live without love.  But how do I go about finding that right person and let him in?  How do I share my heart when it's been shattered ? 
Jenny