After Angel went to hell Giles wanted to create "spell demanding"(?) to keep Angelus there. After a while Buffy tells Giles that Angelus wasn't Angelus when she staked him with the sword. Instead he was Angel again. She thought that this fact would be important for the spell. Then she leaves the room and Willow asks Giles wether this fact is important or not. And Giles replies that there wasn't a spell all the time. So what did Giles want to archieve with his lie? Or did I misunderstood the hole situation? Can someone help me out there? I has to think about this all the time.