You should move on with your life and leave this person behind. If you are his girlfriend, the person he loves and wants to be with, you should receive all his attention. Don´t try to hang on to what seems, is not yours and never really has been. You should not repeat over and over again the things that bother you. If he cared, he would have taken corrective actions a long time ago.
That is my opinion. Give yourself more value than what he has given you.
Good luck.