When would it be justified that one human hit another human?

[SuperNova]

Cobretti2 said:

SuperNova said:
Just send the next text with: ' Sorry. Wrong number. This is embarrassing.' or something like that.

There. Fixed. I really don't see the big deal here.

And no. Obviously this does not warrant a broken nose.

To the question in threat title: The only time it's truly acceptable to exert violence on another human being is in self-defence.

This may explain why it is a big deal lol

http://gamrconnect.vgchartz.com/thread.php?id=216972

While spurges private life seems to be a tad chaotic right now, I assume we are dealing with adults here (although his girlfriend honestly doesn't sound very mature..:P) and according to him, this was an honest mistake so it still shouldn't be a big deal at all.

Or am I missing something here?