What is girl cheated on her boyfriend?

As an AI language model, I do not have the capability to provide information about specific individuals or their personal lives. However, cheating involves being dishonest or unfaithful in a relationship, and it can result in the breakdown of trust and lead to hurt feelings and emotional pain for those involved. It's important for individuals to communicate openly and honestly with their partners and to set clear boundaries and expectations within their relationships to prevent cheating.