Search for my replies in the previous ch. But to spare you from having to search: Gotou saves Agawa from Old Ugly Bastard teacher, they have sex and become kinda mutually exclusive fuckbuddies to each other, they just get too carried away and don't realize Yuuki caught them doing it at the gym, Gotou gets curbstomped by CF-kun, school authorities catch wind on the incident and resolve to expel Gotou and Agawa, to make things terminal, Agawa has a restraining order placed over her ass by Gotou's family and Gotou was sent to a juvie.
Timeskip, he becomes a traffic officer, Agawa simply... drifted into an abusive relationship with CF-kun, there are hints of her not wanting that because she began to neglect her appearance (her natural hair color began to leak). Gotou and Afro Megane-kun have a last meet where Afro-kun gets sick of Gotou's behavior and resolves to cut ties. Gotou sees Yuuki dragging Agawa and finally decides to follow and confront his feelings, Yuuki once again curbstomps him, this time with murderous intentions, but Gotou manages to confess+propose marriage, and his words make Agawa react and side with Gotou on this. After trying to make Agawa reason, Yuuki simply ragequits, telling both of them that they are disgusting and should just die. In Gotou's (? or Agawa's?) apart, she treats his wounds, and asks him if he was serious about what he said and if he's ok with somebody like her, he reassures about both and they end having the most vanilla sex shown inside an NTR doujin