So, Astarion just came on to me... when I have never had any interactions I would define as romantic toward him.
And these were the dialogue options... I shit you not, these are absolutely terrible. These arent exaggerated, or changed,
Astarion: im growing to like the whole package, honestly. And you clearly like me too, so...
1. What Gave it Away?
2. ... So?
3. I'd rather kiss a leech - they're just as attractive, but take less blood.
----
This is absolutely some of the worst, there is literally no option for "im flattered, but I just dont see you that way" or even "what gave you this impression?"
At least, Astarion Isa good sport. In EA he gave you approval for answer 3. I had to use it there once had to laugh.
I hope that’s still the case, that’s great. I don’t think I’ve ever seen those options myself.
More generally, I think there is an issue with the game missing more neutral options, and this isn’t confined to romance dialogues. I’d agree having such options is important. It’s never going to be possible in a multiple choice dialogue tree to cover absolutely every possible thing we might want to say or do, and it would get too unwieldy to even try, so having noncommittal options is key to being able to consistently roleplay our character. I don’t mind not being able to say exactly what I want all the time, as long as I can enough to make their character clear, but I hate being forced to say or do something they definitely wouldn’t.
Astarion often gives you approval for witty replies, even if they are meant to insult him. Had that a few times in my full game playthrough.
"We are all stories in the end. Just make it a good one."