There's a song that I hear at work all the time and the chorus goes
"one is breaking into two, my heart is turning blue, and you still don't get it do you?" And I'm thinking it's called Start back over at one... but I can't find it anywhere!

Start Back At One Goes

1. Your Like A Dream Come True
2. Just Want to Be With You
3. Girl It's Plain to See That You're the Only One For me
4. Repeat steps 1-3
5. Make You Fall in Love With me

Whenver I bvelieve my work is done, Then I start back at one.

I think it's by Brian McKnight.

Over At One-Faith Hill