Dude, you need to cut yourself off totally from her. No calls, no letters, just walk away. You will never get over her if you have let yourself have contact with her. You say it's over but then you go back to letting her pull your strings. She's not gonna love you anymore, she broke your heart, now pick up the pieces and MOVE ON!!!!!!!!

Talking with us has not helped it seems, so go talk to a therapist.