People who have hopes for yandere or crazy girl energy expect too much from Louise and Alison.
Louise is clingy and dramatic, but the worst she could do is scream and cry. She is submissive and a doormat, she wouldn't attack or babytrap anyone. She already showed how she dealt with breakups, twice, once with Jeremy and once with Lena. It was pathetic, but in no way dangerous.
Alison is passive aggressive and frustrated but also too well behaved and civilized to resort to violence. She tries to be manipulative in very mild ways, that way its easy enough to pass it as a coincidence.
The worst we got in this game was Lena punching Rosa, and that was very tame and meant to be comedic. Or Robert/Ian getting a blue eye. Not even blood.
The game is just too grounded for crazy stuff like slasher girls, extreme stalkers who drive over boyfriends, rape by drugging and so on. At its worst its Seymour threatening you with unemployment (and possibly not even following it through, that lousy dolt).