He is correct about the ‘in a real fight’ thing. But you weren’t in a real fight. If it was a real fight you could use a weapon, it wouldn’t be in agreed upon circumstances. It’s not a real fight and shouldn’t be treated as such, and considering all he did was suckerpunch you, he wasnt treating it like a real fight either. A real fight ends within 5 seconds usually and if someone has the opportunity for a suckerpunch theyre gonna go further than that with it