I don't know if the pink-haired girl will win in the end. The MC made it clear in this episode that he's really in love with the girlfriend and even said she doesn't deserve him. Besides, he already slept with her and enjoyed it. In the last panel, he's all happy talking to the girlfriend, who didn't even notice the pink-haired girl.I guess it right here.12 days before the chapter hahahaha.The only thing we still have remaining to see is with who he'll end with.