But I think there is no need to change anything, because I do not think that this is coercion. Tav can says " do as you want, but such a potion would be useful". And after that, Astarion bites Araj , spits, minus 3, but he chose it himself, Tav only expressed his opinion, but did not force the drow to bite. And it just looks good with the romance, Astarion and Tav are a couple, and he understands that this is necessary for the business, so why not bite, although it’s disgusting. And I don’t like Astarion’s confession after Araj at all, it looks like gratitude, it’s unpleasant. Moreover, this is one of the options for the development of relations, after Yurgir you are already a couple, and Astarion no longer treats the bite as coercion, I think so, therefore there is no need for a scene with resentment that he was forced, he decided on his own. And to say that there should be consequences for Tav in the romance after Araj’s bite is incorrect, this is metagaming. Tav can't know what he's doing is wrong. Tav is already in a relationship and Astarion doesn’t really resist, especially if we say as above, he decides to bite, so it’s unfair to make claims against Tav.
I don't agree with everything. I too like Astarion's recognition more after Yugir, so I leave Arai for later.
That's not metagaming. All along the way Astarion says he wasn't his own master, everything was decided for him. The choice to bite would have been his if he had said to Arai, "you stink, but you'll come in handy for the cause, I'll take it". Meeting Arai, Astarion immediately to her suggestion says "I don't want to". Loud and clear. You can reply to her that "he declined". If you decide to find out why he refused, he will start to explain already. And even after that you can say, "you don't want to, say no". And he thanks the player, twice. The phrase "do as you please, but we could use the potion" is just psychological coercion. The same as with the astral larva, when you convince the companions to take it, no one wants it, but after the phrase that for the cause, for strength, against enemies, the characters agree. But they don't want it, it's your choice, your conviction.
It's the same thing if you were given a raisin pie (for example). And you don't eat raisins, and you don't like pie. And you talk about it. You get a reply: "suit yourself, but I tried so hard when I made it..." And you eat the raisin pie and suffer so as not to offend.
In my opinion, it would be a good idea to play these scenes both, even if you already got one of them. It would reveal the character better.