Mood: The mood of the video appears to be melancholic and introspective, with a sense of longing. The use of the word 'SAD' in the title suggests that the video may explore themes of heartbreak, loss, or sorrow. The expressions on the faces of the two individuals, particularly the woman's gaze, convey a sense of emotional depth and vulnerability.

Environment: The setting of the video seems to be an urban or rustic backdrop, possibly an old wall or a street. The weathered and worn-out texture of the wall behind the couple suggests a gritty, realistic atmosphere. The overall aesthetic is muted, with a focus on earthy tones, which adds to the somber mood of the video.