I propose that we make a pact (yeah, I stole the idea, but I like it) (I felt too cheesy to say it when we were watching Now and Then. Actually, I'm feeling pretty cheesy about it now).
But seriously. We have to stay friends after high school, because honestly I don't think I could function without you. You know just about everything about me and I feel like you've totally got my back (and I've definitely got yours) (this sounds like a frickin' yearbook signature.)
Anyway. The pact. When you're singing/dancing/acting on Broadway and I'm writing novels...in a really nice coffee shop...I promise that you'll be my best friend, and I'll call you regularly and tell you about what's going on with me, and I'll let you play with my babies, and I'll write letters if you want me to, because mail is nice, and every once in a while we'll get together to have sleepovers where we watch musicals and read kids books, just like we do now.
That's my pact to you. And now I feel all gooey and sentimental, but I'm really being sincere here. I think life can be like movies, if we try hard enough.

Love, Sam