[ Leave it to Iorveth to remember their due diligence. Astarion had figured they'd just kill her and leave her bloody corpse to be discovered by the Fists while they spent the rest of their day gallivanting about the city, but this does seem to be a smarter idea, albeit a less pleasurable one.

He squeezes Iorveth's hand. ]

It's your blood she took. It's only fair that you take some back. [ A pause, then— ] Ah, that doesn't apply to me, of course.

[ Like always, Astarion gets to play by different rules. Iorveth might have given his blood willingly to this vile woman, but Astarion despises the idea of her misusing it. He hadn't known to be jealous back then, but he had thought it an awful waste of blood that could have been donated to the party vampire instead. Now it's more than just a waste; it's an insult. ]

If you want to be the one to put a blade through her, I won't stop you. Although I can't be held responsible for what I might do if she fights back.