Lyrics:

I don't think of you every day and night
I got things to do, yeah, I'm doing alright
So I can't explain why, in times like these
I nearly go insane when you're not here with me

Oh, I know it's really over and you're never coming back
And there's no way that I can make it right
Still I wonder, oh, I wonder, oh baby, I can't help but wonder
Who's kissing you tonight?

Oh, and is it the jealousy that's hurting me?
So why can't I let it be, why can't I just let go?
Oh, but the thought of you, somewhere with someone else
Doing what we used to do, feeling what we felt

Oh, I know it's really over and you're never coming back
And there's no way that I can make it right
Still I wonder, oh, I wonder, oh baby, I can't help but wonder
Who's kissing you tonight?

Oh, I know it's really over and you're never coming back
And there's no way that I can make it right
Still I wonder, oh, I wonder, oh baby, I can't help but wonder
Who's kissing you, who's kissing tonight?
Who's holding you tight, oh, who's kissing you tonight?