Walk away and don't look back....don't contact her I mean why would you? She dumped/left you. If it was ever meant to be then she'll reach out to you. Realizing the error of her ways but again, she has to make that call so in the meantime, work on you, meet new people, better your life in which ever way you need to because 2 things will happen in the meantime: 1. She comes back to you and you being in a position of strength 2. You'll find someone better! You can't lose bro!