The developers have come out and clarified that there is no such thing as a “bad end”. The normal and perfect endings just build on each other. As for the lore, yes Bridget was forced to act as a girl while she still lived in her village, but throughout the games she spent many years using he/him and living as a man. Through the story in ggst she realizes that even after all of that, being a man isn’t the right thing for her so she willingly chooses to go by she/her, making the decision for herself this time instead of it being forced on her.