Okay, I get what you're saying. I don't agree because I feel you can still be quite "grey" depending on the girl, so overall yeah, it's still quite ambivalent. But okay, alright.
What I'm getting from what you're saying is that you can't switch from being nice one night and fucking skullfucking the same girl the following night. I feel like it's quite normal? The game offers choices but alright, maybe not all choices, and maybe not the choice to be fucking bipolar. Because to me, that's what you seem to be asking for. "Hey girl, I really like you, you're my muse, etc." and then "Aaaaaiight bitch, now it's time for the facefuckfest". If that's what you're complaining about I'm sorry but I, for one, feel like it's quite a better writing choice to have a protagonist that is devoted to his way with a little leeway than a pure bipolar psychopath.
When you read a book, do you like when the hero switches from being a hero to a villain and back again without prompting? If you do, I don't know what books you've been reading because none of those I've been reading are like that. Like, it's narration, isn't it? The hero can go through changes but not that drastic.
But since you put "Gey" in bold and wrote it like that I'm thinking maybe I'm just getting baited and I fell for it.
edit : and no the game doesn't require you rape X or Y girl to "be bad" but yeah, you have to "be bad" to...be bad? How is that an issue?