@catfigas got that one too. It was Take a Bow by Rihanna.

The next one is,

  I didn't mean it
When I said I didn't love you so
I should have held on tight
I never should've let you go
I didn't know nothing
I was stupid
I was foolish
I was lying to myself
I couldn't have fathomed that I would ever
Be without your love
Never imagined I'd be
Sitting here beside myself

'Guess I didn't know you
'Guess I didn't know me
But I thought I knew everything
I never felt
The feeling that I'm feeling
Now that I don't
Hear your voice
Or have your touch and kiss your lips
'Cause I don't have a choice
Oh, what I wouldn't give
To have you lying by my side
Right here, 'cause baby

[Chorus:]
When you left
I lost a part of me
It's still so hard to believe
Come back baby please, 'cause
__ ______ ________
Who else am I gonna lean on
When times get rough?
Who's gonna talk to me on the phone
Till the sun comes up?
Who's gonna take your place?
There ain't nobody better
Oh baby, baby

__ ______ ________