1. She takes without giving
Some women think that the world revolves around them and that everyone owes them, but they do not owe anyone anything. It is clearly an alarming sign if your girlfriend seems to be like this. If she is a kind of woman who lays high expectations on you, showing you that you need to care about her, listen to her and do a lot of good things for her, but she refuses to do the same for you, then this is not real love.
Of course, every person has reasons for their behavior, and in her case, it might be troubled past when she was abandoned and mistreated as a child. Or perhaps she was heartbroken in the past and now does not trust people enough. But you are her boyfriend, not a psychologist, and you deserve nice and respectful treatment from someone you are in a relationship with. So, unless she wants to become a better person and work on her issues, you are advised to terminate your relationship.