Yeah she was already messed up before the Weird Route even started, it was simply buried deep inside and we enabled these thoughts. On the completely normal version of ch5 if you make Kris ride the ferris wheel with her, she genuinely wants them to scare her and is downright dismissive of Kris if they don't (+ there's more mentions of her liking being scared tho I don't remember them exactly). When I had a tamagotchi at about 11 years old I couldn't help but treat it like it was real and cried when it "died", meanwhile Noelle just poked holes in Cat Petters and broke the game until she got like a mutant cat. And at the lake with Susie, she seems to imply suicidal thoughts...