Mood: The mood of the video appears to be romantic and melancholic, with a sense of longing. The theme seems to revolve around a complicated relationship or a love story with a hint of rivalry or animosity, as suggested by the title 'Hum Tum Dushman Dushman'. The text 'Tu Mera Yaar Nahi' translates to 'You are not my friend', indicating a sense of betrayal or heartbreak.

Environment: The setting of the video seems to be a traditional Indian or possibly a wedding or a festive background, given the attire and jewelry of the woman. The man's clothing and the overall aesthetic suggest a contemporary or modern Indian setting.