Young guy has a relationship with Rachael (or whoever it was) and, being a computer nerd, kept a file/dossier about it on his computer.
In the final scene, she turns up on his door, sizes up the situation and seductively says: "you smell of sex; it streams from every pore". She pushes past him, goes upstairs and finds the other woman he's been with. I think he tried to grovel or apologise, but it was too late.
Then he deleted the eponymous file he had kept on her.
I know it was some sort of closure or recognition of what he'd done, but I remember thinking "why would you do that?".
I guess that's an early sign of my keep-everything approach to data. You may have lost her, but you never know when you might want to revisit the digital remnants of the woman you love.