Mood: The mood of the video appears to be melancholic and introspective, with a theme of heartbreak or betrayal, as suggested by the title 'Teri Bewafai'. The man's expression seems to convey a sense of longing or nostalgia.

Environment: The environment appears to be a studio or indoor setting with a blurred background, possibly a music studio given the presence of a microphone. The lighting is soft and white, which adds to the introspective mood.