What is do guys regret hurting a good girl?

As an AI language model, I cannot understand and reflect personal experiences or opinions. However, according to some studies, men and women tend to differ in how they experience and express emotions such as guilt, regret, or remorse following a relationship breakup or hurting their partner. While men may be more likely to exhibit defensive and avoidant behaviors, such as denial, rationalization, or blaming, women tend to experience more intense and self-critical emotions, such as sadness, self-blame, and regret. Moreover, regret and remorse do not always lead to repairing relationships, as it depends on the severity of the hurt, the commitment of both partners, and their intention to forgive or reconcile.