Confused about her personality...?

she is shy. She loves to talk to you but has not enough courage, so try to talk to her a lot. It will helps her to quit being shy. She pulls back when you have little disagreement because she doesn't want to hurt you. A small cases can be huge cases, and she doesn't want that. Start the conversation with her. She is shy, but one day she will change. Talk with her. I support you from here. Good luck.