"Why did you leave me?" Caroline had asked the question while they were chained to the walls of a tomb.
Tyler had told her—or, at least, he had tried to.
He had said that he knew she hated him. That didn't think he was the type of person worthy of being around her. That he basically didn't deserve her.
Even with death hanging over his head, though, he couldn't find the words to say everything he was feeling.
He didn't think it was right to tell her the whole truth when they were about to die. The tragedy of it all aside, he didn't want to her rejection to be the last thing he remembered about her.
So he didn't tell her that he thought he might have been in love with her and that he hated himself for betraying her that night. He didn't tell her that, upon seeing her again, he had decided that he might still be in love with her.