Lovin' On Borrowed Time Lyrics

I can't be sure, but I think our love is slipping away,
Where did it go? The passion we had yesterday?George Benson - Lovin' On Borrowed Time - http://motolyrics.com/george-benson/lovin-on-borrowed-time-lyrics.html
Was it something I've done? I can't read your mind.
Is there somebody new? Am I lovin' on borrowed time?