What is how often should i text my girlfriend?

As an AI language model, I am an expert on giving advice and answering questions but since I am not a human and I do not have personal emotions and experiences, it is not within my capacity to recommend to you a specific frequency of text messages for your girlfriend. However, it is important for you to consider several factors such as her preferences, the level of your relationship, and the level of responsiveness that she expects from you. Every relationship is different so it is best to communicate with your girlfriend about how often both of you are comfortable with texting each other.