Song Lyrics? Forgot Name of Song, Please Help!?

a man and a woman sing the song

it's about 3 girls whose lives are crap

I want to say the name of the song is Runaway Love, but it's NOT the one by Justin Bieber

(That is part of the refrain though, I'm 80% sure)

One of the girls life sucks, but she has her best friend by her side. Then her best friend gets shot, and she runs away since she can't stay where she is without her friend's suppport.

Another girl is 11 or 12 and to escape her life, she's dating this 16 guy who gets her pregnant. She gets ditched and then runs away.

I don't remember the first girl unfortunately.

If someone could help me by providing the name of the song or the artist, that would rock!

~Zuki