Strung up on love

I was a new kid in this school, but I had already been there before, because I knew a lot of the kids there already. They called me by silly nicknames they had given me, and it was all cool. There was a boy I kind of liked, who really liked me. He was a little crazy, but you couldn't tell unless you were looking for it.
He decided to round up each girl I had liked in the past, and hang them all up in one of the school's closets. I was horrified, it was so gruesome to see them there together, dead up in a closet. They all still looked so beautiful. He stood behind me waiting for my response, and I didn't know what to do.
I hid away, and he hid too. Neither of us wanted to talk about it, but I don't think he regretted what he had done at all.
I found a bottle of stuff that was supposed to make fake zombies, so I went back and poured it over all of them. The first one to wake up was the girl with the pink hair. She got down and was feeling vengeful. I was really hoping the keyboardist would wake up first, because I really wanted to make sure she was okay.
Anyways, the girl with the pink hair grabbed something long and sharp, like a broken pvc pipe or something, and she went after the boy. I knew it would be no use to stop her, and I really didn't want to. I waited behind with the other girls, who informed me once they woke that the contents of the fake zombie stuff wouldn't last.
Then I became the girl with the pink hair.
I approached my murderer while he was in the shower, I saw him clearly I stabbed the long pipe through the shower curtain, and caught him right near his heart, but it didn't go in deep enough. He pulled the curtain back, and started laughing.  he was crazy. He said that if I kept going, the world would think I killed him and the other girls, and not the other way around. Then for some reason, I got stabbed. I grabbed the pipe again and rammed it through him, and then I reached up and put some of my blood in his hair.
Then I became my self again. I was watching the news, and the reporter was talking about how he had tried to kill all those girls. A medical team was able to revive all of them except the pink-haired girl. I felt depressed that I would never see her again, but at the same time happy that she had gotten what she wanted before she died.