Seeking expert testimony is a sign of strength. A personal relationship with a caring professional is proven clinically effective.
It seems that she did you a favor breaking up with you (and it was HER that did it). This is the way she is for whatever psychological reasons from her past - perhaps abuse or abandonment which caused low self-esteem.
This was not directed against you although it feels personal. This poor woman suffers a great deal, no doubt.
You WILL soon forget about her when you find someone who is more stable and who has the ability, maturity, and mental stability to hold on to a relationship with a good man.
Right now, you are experiencing a bit of a loss, similar to grief. It gnaws at you now, but soon will pass.
I can recommend a wonderful book that has been very helpful to some of my other clients who have experienced a similar breakup. The book is:
You will be fine in short order.
Get this book. It can only help you. It is quite powerful and effective and you need a little positive boost.
I am confident that you will get over this girl in short order. She needs some professional help. YOU cannot help her however, and she can only bring you down, as she has perhaps brought down others.
I shall keep you in my prayers and wish you great success.
Elliott, MAE, LPCC, NCC, CCMHC