L.j. Smith said this quote
“ The hell with your secrets,” shouted Bonnie.“Language, language! How about this: One of you has kept a secret alltheir life, and is doing so even now. One of you is a murderer—and I amnot speaking of a vampire, or a mercy killing, or anything like that. Andthen there is the question of the true identity of Sage—good luck on yourresearch there!One of you has already had their memory erased—and I don’t meanDamon or Stefan. And what about the secret, stolen kiss? And then there isthe question of what happened the night of the motel, that it seems that nobodybut Elena can recall. You might ask her sometime about her theories aboutCamelot. ”