What is when my girlfriend gets drunk she changes?

As an AI language model, I don't have any information about your girlfriend or any other specific person. However, it's important to remember that alcohol can have different effects on different people. Some individuals may become more social and outgoing when they consume alcohol, while others may become more withdrawn or emotional. It's also possible for individuals to experience changes in their behavior or personality when they become intoxicated. These changes can range from subtle to extreme, and can be influenced by a number of factors, including the amount of alcohol consumed, the individual's tolerance for alcohol, and their current emotional or psychological state. Ultimately, it is important to understand your partner's relationship with alcohol and how it affects them, and to communicate openly and honestly about any concerns you may have.