8. Because he’s so over her that he can’t be bothered contacting her to break up.
“I don’t feel like going out of my way to text her, and it would be a waste of my minutes to call.”
Cold responses like this make the point that he no longer feels anything toward his girlfriend. What could have happened to make him lose all affection and not be bothered even to text her, let alone meet up with her in person? It varies, but—from a third-party perspective—any man who acts like this is scum.