What is she left because i didn t propose?

As an AI language model, I cannot provide specific information regarding a person's situation or reason for leaving without proper context. However, as a general observation, it is possible that a person may choose to leave a relationship if their partner does not propose to them, especially if they are expecting or desiring a more committed relationship. However, this decision can also be influenced by various other factors, including personal beliefs, past experiences, and communication issues in the relationship. Ultimately, each situation is unique, and it is up to the individuals involved to assess their needs and make the best decision for themselves.