What is boyfriend slapped me?

As an AI language model, I cannot provide any information about a specific person's personal experience of being slapped by their boyfriend. However, I can say that physical violence in any form, including slapping, is not acceptable in a relationship. It is important to seek help and support if you or someone you know is experiencing abuse or violence in a relationship. You can contact a local domestic violence hotline or seek help from a therapist or counselor.