I also feel that the "How could I say no?" sounds more like someone being offered a treat they can't resist and making a show of it, and not like a serious discussion of consent. But who knows, maybe the devnotes proof my perception wrong.
I do think this is the intention of the line, just given the context it's uncomfortable imo.
Lower down on the wishlist is:
- after Halsin offers a side fling, I really wish they'd add a dialouge option for "hey [romantic partner], I only have eyes for you but for the sake of openness I wanted to let you know this happened."
It's definitely not at the top of the list compared to the other items, but it feels weird to be propositioned but not to have any followup with your LI that's " I said no, but you should still know this happened."