It's because of the mastermind Tachibana! Tachibana NEVER lets him forget how LOWLY he is compared to her, even if their fuck buddies, there is a CLEAR difference in intelligence between the two that DOES grind his gears! One thing is clear is Tachibana is WARPED so he likely has a fetish for smart WARPED girls! Thing is he KNOWS Tachi isn't stupid so he will NEVER get one over on her, so can only settle with "suppose" smart girls like Eri and Miyuki, note his descriptions on Miyuki and you can see that inferority complex, he loves watching such stupid girls throw themselves on him and destroy their lives, even in the Novel one of the words out of Eri's mouth he VERY MUCH got off on when he dumped her was "how she threw away her childhood friend for him!" Like he was suppose to give a damn, and I actually agree with the scumbag after seeing Endou's flashback in this chapter! Eri HAPPILY mistreated, insulted and threw him away herself. He has at least a point that he never controlled her into saying and doing any of that, she did it herself, yeah he told her to dump Endou and make it hurt to show her devotion, but the lengths was on her and she really showed in the end Endou meant nothing to her, and she really thought she upgraded, NOT SHOWN in the flashback likely because Endou took "seeing through her" seriously was that after Kondo dumped her, she like the miserable POS she became, "ran into Endou and actually thought HE'D TAKE HER BACK!" She had NO PLANS or never said it of EVER APOLOGIZING for her actions, of course Endou walked past her and she could FEEL the contained rage he had, scaring her back into chasing after Kondo as you know, now his Fuck Buddy slash STALKER
Miyuki took the cake in how deluded she was in thinking she was in charge at ANY POINT! While Eri had Tachibana's Intelligence but missing the part where Tachibana KEPT control and wasn't BEING CONTROLLED by Fuckboi! Miyuki thought she was as SNEAKY as Tachi was, she was not nor EVER WAY in control as we witness ESPECIALLY with Ms. Aono, she DID have Tachibana's selfishness, same with Eri, though a BOON for Miyuki I'll give her is when the consequences hit, she cries like they do, but she ACTUALLY did feel guilt, and did atone, took abit so she's basically only A LITTLE less shit then them, but at least you can say she has a chance to be a better person after being a shithead, those two, there's no recovery for them, they are SHITTY PEOPLE and their final end of "being alone" is completely deserved especially with no chance of truly changing that fate cause that would take CHANGING THEIR WAYS! Miyuki did change ONLY because she suffered consequences she easily could have avoided and her bad choices will always haunt her, but if she atones properly and never wavers again, she CAN rise from just "a small shit in the road!" Those two NOT SO MUCH! They're as DOOMED as Kondo is LOL
