In the original, "not deciding" was how you got the good ending. In the Re-cut, I was struggling to get Bae's good ending despite passing the minigame. Turns out I just needed to make different decisions throughout her route.
So, putting those two ideas together, maybe you need to make different combinations of choices throughout her route and then still "not choose" for that decision?
I hope this wasn't too vague, I'm trying not to explicitly spoil anything too badly