Movies
I don’t know how to make this any clearer to you; you mean nothing to me.
— Sebastian • Cruel Intentions

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The opening presents the message as something that should already be clear, before stating the rejection in the bluntest terms. Saying 'you mean nothing to me' leaves little room for reassurance. The complaint about explaining it adds impatience to the dismissal.
Context reviewed