Mood: The mood of the video seems to be melancholic and introspective, with a focus on relationships and heartbreak. The theme appears to revolve around the complexities of love and human emotions, possibly exploring the 'what ifs' and 'could haves' in relationships. The overall tone seems somber and contemplative.

Environment: The environment/setting of the video seems to be urban, possibly in a metropolitan city, given the title 'metro' and the presence of cityscapes in the background. The video may explore the lives of people living in a bustling city, navigating their relationships and emotions amidst the chaos of urban life.