subconcious fear

So, I realized something last night. An unacknowledged fear. The cause of which has been going out on dates with the 5 or 6 guys I've been out with since getting here. One is still in my life as an automatic friend, there was never anything else there. And one, I'm still exploring the possibilities, but the others have been in and out of my life like a revolving door. The one I referred to as good in a previous post, occasionally tries to come back through the door, but that won't happen. The lifestyle and view on the world is much too different.
The one that I'm talking to now, he could conceivably sweep me off of my feet. But I'm having difficulty sharing my life with him. My history, my soul. He really wants to know me, and I am at a loss for what to say. It's not that I don't want him to know me, it's like I've shared so much of myself over the last year, that I'm empty. I know I'm not, but maybe subconscious walls were put up because I was sharing so much for no return. I don't want them there though, they have to go. It shouldn't matter. There is no harm in them seeing the fullness of who I am and the hows of why I am.  So I fight on. I don't want there to be fear in my life. I don't want walls.  But, I'd really like the revolving door to stop, because it's hurting me.