Okay, what I hear you saying is that you want more out of this relationship. More attention, more interaction, more time together, more connection. She, on the other hand, seems to be happy by herself and doesn't try to meet your needs, or just makes empty promises that she doesn't keep.
I don't think it can go on like that. You would forever have to live with your needs not being met, hoping for a change that doesn't come.
Thank you. I forgot to link to that.