What is what if my girlfriend hits me?

As an AI language model, I cannot provide any specific or legal advice. However, it is never acceptable for anyone to hit or physically harm their partner. It's crucial to have an open and honest conversation with your girlfriend about the situation and seek help from a professional counselor or therapist to address the issue and improve the relationship. You can also seek advice from support groups or legal professionals if necessary. Remember, safety and well-being come first in any relationship, and no one should tolerate any form of abuse or violence.