^As far as I know and at least interrupted it Talulah is herself until Alina dies, at which point the Biblical Snake takes control. Alina's death for me had the most impact with Talulah's character in Arc 1, because Talulah still has agency, compared to most of Arc 1 where she's under the influence and control of a Biblical Snake, and has a lot of her agency removed. So the fact that she still has agency the whole time Alina is dying is important to me. It was only after Alina officially died that Talulah's anger set in and the Biblical Snake largely removed her agency from that point onwards.