Lydia knows that it's only half of a comfort, but she's trying.

"The things that I felt, that happened back home -- they're the same things that Stiles told me happened. We're not from the same point in time, so I can't be missing, because in his future -- I'm still there. I was there, so things can't just keep going without you, Rachel. You have to trust that you're too important for that to happen."

It's the sort of thing she'd want to hear and she hopes that it sounds like the truth, because it's what she wants to be the truth.