I know I said I wouldn't write something like this, because it would seem like a farewell of sorts, and that would go against your definition of family. But I don't know if I'll ever be able to talk to you properly again, so forgive these awkward words.
I know that you'll do well, wherever you're going and whatever you do. It's always been that way with you. I hope that people there would realize how lucky they are to get someone as smart, as special, and as great a friend as you are.
I know that things weren't always the best between us, so I apologize for all the hurt and frustration I have caused you. I want to take this chance now to give you a little gift the day before you leave the soil we both stood on together, and move on to greener pastures:
I give you whatever wings I have, so you may use them to be able to fly and fulfill your dreams. I give them to you enriched with all my love, hopes, dreams, and moonlit nights. I pray that they will serve you well. On moonlit nights like those we spent before in Pisay, I hope to look up to the sky, and know that I will find you flying up there, seeking curiously amongst the stars. Flying up in the sky watching over me - over US - as you always did.
To my dearest RC... You were a sister to me, and you always will be. I keep this love and friendship with you that neither time nor distance will change. I love you, onee-san. Best wishes to you, and God bless, always. God loves you, and so do I.
If you need something to remember me by - if you ever want to - you can find it in the Sam McBratney's children's book Guess How Much I Love You:
"I love you all the way to the moon... and back."