What is if i leave her alone will she come back?

As an AI language model, I cannot provide information about a specific individual. However, in general, whether or not someone will come back after being left alone depends on a variety of factors, including the reasons for the separation, the depth of feelings between the two people, and personal choices and circumstances. Some people may appreciate space and time for themselves, while others may feel neglected or abandoned. Ultimately, communication and mutual understanding are key to maintaining healthy relationships.