What is should i leave her alone?

As an AI language model, I cannot provide specific advice for your relationship situation, as I don't have access to your unique thoughts, emotions, and situation. Ultimately, the decision to leave someone alone is a personal one that should be based on a variety of factors, including your feelings, the other person's feelings, and the dynamics of the relationship. If you are considering leaving someone alone, it may be helpful to seek guidance from a trusted friend, family member, or professional therapist. Communication and honesty are also essential in any relationship, so it is important to have an open and honest conversation with the other person about your intentions. Ultimately, it is important to prioritize your own well-being and happiness, while also considering the feelings and needs of the other person.