Kenny loves Butters to an obsessive degree. That's right, the immortal, loves the sweet, innocent, Butters. And they had been dating for awhile, he wanted Butters all to himself. Even if Butters is so innocent. He needed Butters. Even if it meant killing, or kidnapping, or doing the world's most vile things. He just needed Butters. However dispit that it seems Butters is the one that did it first, as he was currently chasing Kenny though the woods with a knife.

You are Butters.