I would tell that special someone how I feel. I had my heart broken before because I did and the other person didn't feel the same way about me. But, if I didn't then I would not have known.. and I would not have moved on. Just do it! End your misery, or prolong it. Either way, it's your call.
what I am saying is that just tell her what you feel and go on with your normal activities. Don't dwell too much on it, so that you will not be hurt if ever. What is important is that you will let her know and let her feel how much you love her. Just "verb" it - actions speaks louder, so that you can capture her heart.
I think there's nothing wrong with showing vulnerability. Fear sometimes however pulls a person apart or begins a cycle of warring egos. I would have liked to see you add color in terms of words, really understanding your fear.
You're welcome to see my own hubs for other ideas.
But good for you. I also released an ebook either on amazon.com or smashwords.com called Taboo Nation that you may enjoy