My advice is not to contact her again..... not every......let her go. No matter how you feel about her, she is not worth the effort. In your head the relationship was of more value & importance to you than to her. You had value of loyalty in your relationship, do not insult yourself by crawling back to her....... keep clear of her. If she wants you she knows where you live, your phone no etc, and she can contact you is she wishes.
The conduct of human nature cannot be regarded as an exact science, and even the most reliable of partners / friends somtimes make choices that cause great hurt to those that love and care about them very much. When anyone of us are in such situaltion of loss, we feel hurt and maybe feel broken - that is what you are feeling. it is not love, love is a 2 way thing.
We must learn not to surround ourselves with people who cannot at least compromise for us at tought times in a friendship. What they are really saying by not compromising for us when they know we are hurting is...... "I am not listening to you, your hurt does not have a value to me", i am doing my own thing".
I have learned this lesson many times in my live.
You have to learn that in you head YOU HAVE TO DUMP HER EMOTIONALLY........ she is of no value to you. You are being drained by this negitave energy. She has rent free accomodation in you head - get rid of her.
It is now time to get rid of her from every fiber of you being and move on. i know this is never easy, but you must do it.
Get out and enjoy yourself, and for God's sake, dont take her back, because even if a reconciliation were to happen, and a difficulty were to arrise in the future for you both, she WILL still take exactly the same route and leave you high and dry again and you will feel a victim again and you will feel even worse.