She is not MC's mother, if she can not understand fellow student it is questionable how can they from relationship. Also MC did not got beaten to near death but actually won (well i didn't try losing so i can't say what happens then).
The part about throwing dildos... i will just stay students in a game... just imagine if IRL students wouldn't need to worry about damages and could prank people at will... holy shit.
fortunately IRL there is no need for the mother to always defend her cute baby, often a friend, a passerby are enough ...
from what they tell us Chad beats him for good, probably also for the wrong reason.
and in any case who of the two, between MC and Chad, is hurt more does not matter, Chad attacks him, he is not sentenced to the electric chair, but to the right penalty for those who only separate their ears with their heads