@demented Yes, you are correct. I don't think she is ready to open up enough yet to have a stable relationship. I do agree that it is impossible to have a relationship while having little to no outside influence.
However, I still must disagree about sharing every aspect of life together. As long as you and your girlfriend are in mutual agreement about how you run your relationship(and you are both happy), then by all means, keep doing what you are doing.
When I mentioned sharing every aspect of life, I mean it literally. For example, a relationship in which one partner can't handle going to the bank without the other partner. Another example would be someone who can't bare to be alone while the other person might be gone for one night on a business trip. That is what I meant by sharing every aspect of life. These two examples of relationships would be unhealthy.
Certain amounts of privacy are necessary. Sometimes, taking a walk alone can give you time to reflect on different events happening in life. Privacy gives you time to think and be your own person for a little while. I am not saying that it is good to have too much privacy, but I do think that a little is important. Also, some partners in a relationship might have a hobby that does not interest their partner.
There is a difference between secrecy and privacy. Secrecy is filled with guilt and a bad motive. Privacy is more relaxed, in my opinion. Privacy does not necessarily mean hiding something.
Example: If you have a partner who claims that they are painting a picture in another room, but you come in and they quickly put their phone away, then that is secrecy. If the person paints a picture in another room while you walk in and they keep painting or they show you their work, then that is just privacy while painting.
Having to share every aspect, in my opinion, sounds very paranoid. Would you trust your girlfriend if she privately took a walk?
