You don't have to think of it as walking away forever. Realize she has no role for you right now, and is doing things that are hurting you. Make a decision to walk away for a set period of time, say three months. During that time, don't include her in your life, and try to push her from your head. Give yourself the gift of healing, of peace from the madness. Live your life. Trust me, three months is NOTHING in the timeframe of these situations.
