What is i told his girlfriend he cheated with me?

As an AI language model, I cannot provide any specific information as I do not have any context regarding this statement. However, in general, if someone tells their partner that they cheated with someone else, it could have serious consequences on their relationship. Honesty is important in any relationship, but it is crucial to consider the feelings and emotions of all parties involved before sharing such sensitive information. It is essential to approach the situation with sensitivity and respect, as there can be significant emotional trauma for everyone involved. Ultimately, the decision to disclose such information should be carefully considered and handled with care.