Glurge: Oh, ye Gods. This review from an ex-troper suggests that "anyone wondering why there is a surprisingly large number of emo kids on the interwebs with a distressingly clueless view of what it means to be on the autism spectrum would do well to dig this chestnut up," since it was so popular with classrooms back in the day.
Nightmare Fuel: Believe it or not, there is a definite dash of Mood Whiplash. Milly suffers a concussion after trying to pick a rose for Eric while standing on a bridge during a field trip. In the hospital, she has a dream sequence where Eric takes her flying, out towards the clouds, dodging a shooting star, all very romantic. Milly then floats back into her room... where she finds the sheet being pulled over the head of her father's corpse by an Alpha Bitch seen earlier in the film badmouthing Eric. She then produces a dodgeball and sends Milly back down to Earth. If you weren't expecting it, it will terrify you.