Mood: The mood of the video appears to be melancholic and nostalgic, with a theme of love and longing. The use of autumn leaves and a bridge in the background suggests a sense of transition and separation. The text and images of the man, woman, and couple convey a sense of yearning and romance.

Environment: The environment of the video seems to be a mix of urban and natural settings, with the bridge and cityscape in the background, and autumn leaves scattered throughout. The overall aesthetic is dreamy and ethereal, suggesting a music video or a romantic drama.