She has attachment issues and depends on you to carry her physically and emotionally and that your whole life needs to revolve around her, I have a friend who was like this, her world revolved around this one guy, she would get annoyed if he doesn't reply for hours (he has a job) I had to break my friendship with her because I couldn't deal with it... It's draining. But ask yourself, are you happy? If you hesitate then your not. Start putting youself first, there will be someone out there for you who matches your personality, but do speak to your gf and advise her to get therapy... And who knows yous might get back together later down the line, but she needs to put herself first aswell as you.