Desperately seeking female artist

Please, help me find out who the female singer is in a slow jazz/soul song. I guess it is quite old.

The lyrics goes like this:
"There always onte to turn away
and one who just want to stay
But who said that love is always fair
And why should I care"
She repeat "Why should I care" in the end of the song.

"Why Should I Care " » Diana Krall


Was there something more I could have done?
Or was I not meant to be the one?
Where's the life I thought we would share?
And should I care?

And will someone else get more of you?
Will she go to sleep more sure of you?
Will she wake up knowing you're still there?
And why should I care?

There's always one to turn and walk away
And one who just wants to stay
But who said that love is always fair?
And why should I care?

Should I leave you alone here in the dark?
Holding my broken heart
While a promise still hangs in the air
Why should I care?