To explain myself I know fram the walkthrough that this is her endpoint. But it's her reaction to the whole situation that put me off of her. Rather than trying to communicate with the mc and work things out she made the kneejerk reaction to go to the curch as if the MC was going to rape her or something. I kind of felt like the MC should feel insulted by that. If they had even a cutscene where they sit down and she expresses her doubts, hears the mc out and then tells him she's going to do what she does to give them some time to sort their feelings out. THAT I would respect, Even if she knew that they weren't siblings but just wanted some time to get her head straight. Totally respect that .. But she just pushes the MC away after all they've been through she doesn't even wait for confirmation. Even though she knows he's looking for answers. Walking into that house just felt like a giant rugpull. And made me see her as a coward. Perhaps a few more scenes from the dev early in her path might make me change my mind.
I don't really want to turn off ntr because I like the sense of danger. It makes me feel better when things go right. I just don't want to have it constantly thrown in my face when a character I don't like does it. I view it like the dev does, A punishment. As I'm really not into NTR myself.
Now if I was playing an evil playthrough .. well that's no biggie, Pussy is pussy. But I'm not .. I do get what the author is going for so perhaps this is more of a writing/pacing error than an intented character flaw.