Toriel just seems immensely disappointed, Alice ends up getting the same judgement she gave Peter, Category 2.

Toriel reminds the young woman that- control issues or not, both of them planned to aggravate and kill someone they knew was dangerous. She'll acknowledge she doesn't know what occurred between all of them previously, but that is no excuse for actively goading on someone they know had little self control. Reminding Alice she and Peter actively endangered themselves and people uninvolved with their plan.