Mood: The mood of the video appears to be light-hearted and playful, with a hint of romance. The title 'NOT FUNNY' suggests that the video may be a comedic take on a romantic relationship or a humorous exploration of emotions. The overall theme seems to be centered around love, relationships, and possibly the absurdities that come with them.

Environment: The environment appears to be a mix of indoor and outdoor settings. The left side of the image features a purple background, suggesting a nightclub or a dimly lit indoor setting, while the right side features a bright and airy outdoor setting with greenery visible in the background. The contrast between the two settings may indicate that the video features a range of environments, possibly reflecting the ups and downs of a romantic relationship.