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Aki Aki created a topic of Reverse Thinking

I wanna know why the top is doing these things to the bottom. What was his motive? It can’t be that because of the action in the first chapter? Does top has trauma with someone lusting after his appearance and therefore got angry when bottom was all sleazy with him in 1st chapter? I think that doesn’t justify his action? Was bottom big bully to him in middle/high school? Did he ruin top’s life or what?