Sue Snell Timeline & Summary

Sue Snell joins in with all the girls in the shower, taunting Carrie and throwing tampons at her.
But at least she feels bad about it. We guess.
When the girls get in trouble with Miss Desjardin, the gym teacher, Sue accepts her punishment. Her popular friend, Chris, encourages her to rebel.
That night, Sue confesses to her boyfriend, Tommy, that she did a bad thing and feels bad about it. He encourages her to apologize.
Later, Chris calls Sue a hypocrite, which makes Sue feel even worse.
She encourages Tommy to ask Carrie to prom, which he does.
Sue stays home. When she hears the town sirens, she realizes the school is on fire.
Although she doesn't know how she knows, she knows that Carrie has done something terrible.
She races for the school.
The school blows up, knocking Sue to the ground.
Employing her previously unbeknownst psychic powers, she follows Carrie's trail until she finds Carrie dying in the street.
The two form a telepathic bond, and Sue feels Carrie die. It freaks her out.
Sue lives a life of guilt and even tries to write a book to feel better about what happened. We don't think it worked.