I still love my ex gf with every fiber of my being
Why do you feel that you still love your ex girlfriend even though you broke up with her?
I'm too addicted to her beauty and I'm a little crazy over her
I understand being down and missing the relationship.   It is healthy to move on so that you do not continue to be heartbroken.
She should just love me back instead of being so selfish and keeping my love away.
Finding that you can not get your ex out of your mind is very difficult. Try to find some other habits to get into that are healthy like exercise, eating healthy, and hanging with friends. These are all things that can help to control your wandering thoughts.