The main defence to the companions behavior is that they're realistic, that's what i was talking about. The evil path is also just bad, nothing to do with realism.
But again, i don't see how any kind of evil character wouldn't have a problem with a chaotic evil out-for-myself vampire who first assaults them and then tries to suck on them(and possibly kills them), all in the course of a couple of days. I guess if the player likes him excuses can be made, which admittedly i did too when Gale started getting a tad too clingy and a tad too demanding a tad too quickly.
An evil character doesn't mean stupid or cruel. This means that he can also be manipulative and smart, and not just shred everything in his path... You probably didn't think about that.
Again, I don't see Astarion's bite as an evil or terrible act.
Because Astarion actually wants to work with you and he really isn't chaotic evil. He is not an insane "lol lets kill people randomly and damn the consequences" kinda guy, he has a plan, and he follows through with it. He sees you as important to his plan so he works with you and he is even trying to be not entirely unpleasant to you.
it looks like he doesn't have a plan.
"Well, I can drink his blood or we can just kill him," - he says about his master. Nothing concrete.
He has motives and desires, but the exact plan? No, I don't think so. He often gets scared and turns on panic mode. And Yes, he likes to randomly kill people, lol. He approves of almost every "attack" action, he will prefer murder. And the situation with Kaga is a direct example of this.There is no profit for us to kill her, but that did him happy.
