I don't get why people think Gotou's the one to lose here. He just became a cringe fuckboy but his grades improved and his new life's good with Akito and the Prez. And he's definitely good at sex, but Agawa realized while sleeping with everyone else that she enjoyed the more passionate sex she...
I see people thinking this is Gotou's rise before fall, but the dude sorted his life out. He's in control now and hit a good life balance.
We're not going to witness his fall, we are already witnessing Agawa's fall.