Mood: The mood of the video appears to be romantic and intimate, with a sense of affection and closeness between the two individuals. The theme seems to revolve around a romantic relationship, with the title 'She Don't Know' suggesting a sense of secrecy or unrequited love. The overall emotion conveyed is one of warmth and tenderness.

Environment: The setting of the video appears to be a dimly lit, possibly indoor location with a stage or performance area, given the presence of a microphone stand. The background is blurred, but it seems to be a crowded or festive environment, with small lights or confetti visible. The atmosphere is likely a nightclub, concert, or a similar setting.