yes they see you as a selfish lover, im not sure if the main futa will dump u over this, but where im at, if you refuse to "help" Eve out they will just walk away after yelling at you, I wish the sub route was a "extra" instead of a mandatory thing (which is how its done in other games) so i could still see the rest of the content...I'm pretty sure I'm a Switch tbh. So... depends on what mood I'm in I guess
Edit: On a more specific topic, I think I'd personally be down to suck some lady-dick. But taking it in the backdoor just isn't for me. I do remember getting to a part with the first trap (can't remember her name) where she asked the MC if he'd be up for that, and I wondered if telling her No on that one was going to have any kind of negative consequences outside of just not seeing those scenes. Like her feeling MC was a selfish lover or something.