Mood: The mood of the video appears to be romantic and intimate, with a sense of closeness and affection between the two individuals. The theme seems to revolve around love, relationships, and possibly heartbreak, given the title 'Girlfriend'. The overall emotion exuded is warm and sentimental.

Environment: The setting of the video seems to be outdoors, possibly near a beach or a waterfront area, given the blurred background that suggests a body of water and a pier or dock. The warm orange glow of the sky implies that the scene is set during either sunrise or sunset, adding to the romantic ambiance.