I think the fear of putting yourself out there is a fear that you have not judged this person’s character correctly. Why wouldn’t we put everything out there? What is the point of love if you don’t become an open book?
Well, if you are an open book to the wrong person, they can start manipulating you. They know your fears and desires, and they can use that information to get you to do things for them without having to do much back.
I look at it this way. If I do make a mistake about someone’s character, I can leave the relationship. There is no way I’m going to let them manipulate me into doing stuff I don’t want to do. You would only be afraid of being manipulated if you didn’t trust your ability to get out if the relationship turned toxic.
So, if you are afraid of opening up to someone else, I think you are saying that you are afraid you won’t be able to take care of yourself. If you can’t take care of yourself, then you really will have a tough time in a relationship. You will be giving up a lot of your power to the other person.
This is not a disaster, because you can learn to reclaim your own power and your own responsibility for taking care of yourself. You will learn you don’t have to give it up.
However, it is a sign that you may be right to be afraid of opening up completely. It is a sign that a codependent relationship is a real danger. Sometimes people, with the best of intentions, can end up taking more from you than they give simply because they are falling into a power vacuum.
I would look at my fear, and then look at myself to see if I really think I can take care of myself. If I don’t think I can, then I’d have to try to pull back from the relationship, although it may be too late for that. I would spend as much energy as I could on learning to take care of myself and of not giving my partner too much of my power.
I would be comforted by this: even if you have made a mistake in opening up so completely to this person, it’s all right. You will survive and you will learn. Eventually you will recognized you have made a mistake and pull out. You may suffer during this time, but you will get past it.
Looking on the bright side, you may well learn “on the job” so to speak, and your fears will turn out to be baseless. Good luck.