Explaining My AU

Class 1-A has been distant from Izuku ever since he rejected Uraraka before he knows it the whole class is bullying him and his boyfriend Todoroki has grown abusive. What happens when Izuku finds Todoroki cheating will he snap and show his true colors or will he take it and let this continue.
~WARNING~
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GxG
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LEMON
VULGAR LANGUAGE
CRACKHEADITRY
ALL MIGHT CAN EAT SHIGGY'S ASS
DADZAWA
DADMIC
OLDERBROSHINSO
(last 3 are completley platonic)
DADFORONE
(not platonic)