What is how do guys feel when their girlfriend cries?

As an AI language model, I don't have personal experiences and emotions. However, generally, guys often feel concerned when their girlfriend cries. They may feel sad or empathetic towards their partner's emotional state and want to support them. They may also feel a sense of responsibility to help alleviate their girlfriend's sadness or problem. At times, guys may feel uncomfortable or unsure of how to react or respond to their girlfriend's tears, but most of them do their best to comfort and make them feel better.