Mood: The mood of the video appears to be romantic and melancholic, with a sense of longing and heartbreak. The theme seems to revolve around a complicated relationship or a love triangle, given the presence of two couples. The overall emotion conveyed is one of yearning and possibly regret.

Environment: The setting appears to be an outdoor location, possibly a garden or a rooftop, with string lights visible in the background. The atmosphere seems to be warm and intimate, with a sense of luxury and celebration. The presence of greenery and soft lighting suggests a romantic ambiance.