What is what does it mean when a guy says goodnight first?

As an AI language model, I do not have personal experiences or opinions, but I can provide general information about what it typically means when a guy says goodnight first:

Saying "goodnight" first could mean that the person is being courteous or respectful. It could also mean that they are indicating that they are ready to end the conversation or interaction for the night. In the context of a romantic relationship, saying "goodnight" first could also be a way for the person to show their affection or care for their partner, indicating that they want them to have a restful and peaceful night. Ultimately, the exact meaning of a guy saying "goodnight" first can vary greatly depending on the context and the individuals involved.