It is bizarre, isn't it? And I... guess I did leave you behind, in a sense. Most of my friends have always been older than me, so -- I'm closer in age to many of them now. But I'm sorry I've gone and made things more difficult.

I don't have any younger siblings now, but I'd be lucky to have a younger sister like you.

I don't know that there's anything to be jealous of, though. You'll grow older, too - and... I know it's a boring phrase to trot out, but there are a lot of things you'll miss in the present day if you grow up too fast.