Which song fits this situation the best?

Both Taylor Swift off of her most recent album "Speak Now"

Never Grow Up

Long Live

So I need a song(outta these two, unless you have better) where two
friends grow up together and then over time their families grow apart
and death and divorce strikes. The two kids grow up and stop
talking...then when they become mid-teens they start talking again.

I don't know: it's kind of happy and sad.

Remember Never grow up and Long live!!! Only if you're sure you've
found better you can give me more options.

Thanks! :)