Comin' Back For Good Lyrics

Something has been missing, I've been trying to figure out*
Why you're on the list of things I have to do withoutRex Goudie - Comin' Back For Good - http://motolyrics.com/rex-goudie/comin-back-for-good-lyrics.html
You may think that I'm selfish, I know I've done you wrong
You've gotta understand me, I've known it all along