What is my gf never compliments me?

As an AI language model, I do not have access to personal information about you and your girlfriend. However, if your girlfriend never compliments you, it may be for many reasons. Perhaps she is not good at expressing her emotions, or maybe she has different ways of showing affection. It could also be possible that she has certain expectations from you, and when you meet those expectations, she does not feel the need to compliment you. It is essential to communicate with one another and have an open and honest discussion about how you both give and receive compliments in your relationship.