Margaret White: Carrie, you haven't touched your apple cake.
Carrie: It gives me pimples, Mama.
Margaret White: Pimples are the Lord's way of chastising you.
Carrie: Tommy?
Tommy Ross: Yeah?
Carrie: Why?
Tommy Ross: Why what?
Carrie: Why am I here?
Tommy Ross: Because it's the prom.
Carrie: Why am I here with you?
Tommy Ross: Because I asked you.
Carrie: Why'd you ask me?
Tommy Ross: Because I wanted to.
Carrie: Why'd you want to?
Tommy Ross: Because you liked my poem. Only I didn't write it. Somebody else did.
Carrie: Oh.
Margaret White: Witch. Got Satan's Power.
Carrie: It has nothing to do with Satan, Mama. It's me. Me. If I concentrate hard enough, I can move things.
Margaret White: They're all gonna laugh at you.
Margaret White: You must renounce this power. You must give it up. You must never use it.
Carrie: I'm goin', Mama. You can't stop me. And I don't wanna walk about it anymore.
Miss Collins: You too, Chris, and spit out that gum.
Chris Hargenson: Where will I put it, Miss Collins?
Miss Collins: You can choke on it for all I care just get it out of your mouth.
Billy Nolen: That Carrie White, she sure is cute.
Chris Hargenson: Shut up.
Billy Nolen: I thought you said they were gonna win.
Chris Hargenson: They will. It won't even be close. I called in a few favors.
Answer: Since blood was dumped on him too she must have realized that he wasn't a part of it, so yes, she cared for him. In the book when Carrie touches Sue, they link minds and Carrie sees that Sue felt bad about teasing her and was trying to do something nice to atone, and had nothing to do with Chris' nasty prank. So yes it's safe to say she grieved for Tommy and forgave Sue.
Grumpy Scot