Put it as the last line of an exchange, after the argument or request that prompts the send-off. Follow it with footsteps and a door closing effect to complete the exit, and keep earlier reaction sounds before it so this line closes the scene.
About this sound
This is a 5-second Russian voice line telling a stalker to go his own way, spoken clearly and unhurried in a flat, world-weary tone. It feels dry and dismissive, like a tired brush-off rather than a threat, making the rejection sound final. It spread through Russian-language gaming meme culture as a ready-made exit line from clipped game dialogue.